Woman's keen to bottle fruit (6)
I believe the answer is:
cherry
'fruit' is the definition.
(cherry is a kind of fruit)
'woman's keen to bottle' is the wordplay.
'woman' becomes 'her' (her refers to a woman).
'keen' becomes 'cry' (keen can mean 'wail in grief').
'to bottle' indicates putting letters inside (bottle can mean to contain).
'her' going into 'cry' is 'CHERRY'.
(Other definitions for cherry that I've seen before include "Greyfriars Bob" , "Small red stone-fruit from tree" , ""Loveliest of trees, the ____ now" (Housman)" , "cheer? No longer" , "Red fruit with a single hard stone" .)