Capers used in making pickle (6)
I believe the answer is:
scrape
'pickle' is the definition.
(I've seen this in another clue)
'capers used' is the wordplay.
'used' indicates anagramming the letters.
'capers' is an anagram of 'SCRAPE'.
'in making' is the link.
(Other definitions for scrape that I've seen before include "Clean with something sharp" , "Make clean or smooth by passing hard edge across" , "Rub; (bow and) be humble" , "Awkward situation caused by capers" , "What violinist does" .)