Hop bud, pickled (5)
I believe the answer is:
caper
'hop' is the definition.
(thesaurus)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for caper that I've seen before include "Lark" , "Cooked and pickled flower bud" , "Frolic - bud used in cooking" , "Pickle ingredient" , "Escapade with an edible bud?" .)