A Frying Pan, Spick and Span

A Frying Pan, Spick and Span is a secondary quest in The Witcher 3: Wild Hunt.

The quest giver is an old woman, who can be found muttering to herself outside an abandoned house on the river's shore near the village of White Orchard. When approached, she will tell you a detailed account of her frying pan being borrowed and never returned by a man claiming to be a resident of the abandoned house.

To retrieve her property, the woman requests that you break into the house, wherein you may unravel an interesting tale regarding the pan's borrower.

Quest Description
"Many think that the life of a witcher consists of nothing but adventure after grand adventure, an endless stream of contracts on manticores, bruxae and other exotic beasts. In truth, Geralt would often take on more banal tasks, ones lesser bards fear mentioning, for they lack the skill required to make a masterwork of the mundane.  By way of example, once in White Orchard he was hired to retrieve a woman's... frying pan."

~Dandelion

Break into the hut
Obviously the hut is locked, otherwise the woman would have just gone in and gotten her own damn frying pan right? Break down the locked door using your telekinetic blast sign, Aard.

Look around inside
In the first room you'll find a couple of containers with some loot. In the second room you'll find a corpse, explains the stench the old woman complained of. Finding the corpse will trigger a new objective to find out what happened. To complete the quest you only need to find the pan and give it to the old woman. If you want to learn more details about the murder you may search for all the clues in the hut listed below:
 * Cracked silver monocle
 * Corpse, throat slit with old scars like a soldier might have
 * Frying Pan, scrubbed clean of soot
 * Burned papers in the stove fireplace, some still legible

Return the frying pan
When you're done snooping around inside the hut just head outside and give the frying pan over to its owner. This completes the quest.

Closing Quest Description
"A mysterious gentleman had borrowed the frying pan from a little old lady and not returned it. While investigating this damned uneighborly act, Geralt discovered the delinquent borrower had other, more serious sins on his conscience... murder, for example. The half-burned notes Geralt found in his abandoned hut made it clear he was interested in the movements of Nilfgaardian forces and confidential military secrets - in other words, the man was a spy.  Geralt found the frying pan and returned it to the old woman.  She was overcome with joy and gratitude - not only did she have her precious cooking utensil back, but someone had scrubbed it clean for her as well!"

- Dandelion

Trivia
The presence of the cracked monocle is likely a reference to a spy character in the first Witcher game named Thaler.

The witness says something about the man heading west on horseback. If you head west (and maybe a little south) until you near the edge of the map, you will find a small camp with some guards and loot.