Pocketful of rhyme (3)
I believe the answer is:
rye
'pocketful of rhyme' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rye that I've seen before include "J D Salinger novel 'The Catcher in the ...'" , "old port" , "Cereal - liquor" , "Whiskey (US)" , "Grain - whiskey - port" .)