A bit of okra's pickled in jelly (5)
I believe the answer is:
aspic
'jelly' is the definition.
(I know that aspic is a type of aspic)
'a bit of okra's pickled in' is the wordplay.
'a bit of' indicates a hidden word.
'ASPIC' is hidden in the letters of 'okras pickled in'.
(Other definitions for aspic that I've seen before include "Preservative jelly" , "Lavender" , "Savoury jelly for coating meats and eggs" , "Jelly made with fish or meat stock" , "Savoury jelly for coating meat, eggs etc" .)