Fancy pickles to stash (9)
I believe the answer is:
stockpile
'stash' is the definition.
(I know that stash can be written as stockpile)
'fancy pickles to' is the wordplay.
'fancy' indicates an anagram.
'pickles'+'to'='picklesto'
'picklesto' anagrammed gives 'STOCKPILE'.
(Other definitions for stockpile that I've seen before include "Large accumulation" , "Accumulated goods" , "Gather" , "Hoard (weapons)" , "Save" .)