Fruit with many seeds oddly taken to mean grape (11)
I believe the answer is:
pomegranate
'fruit with many seeds' is the definition.
(pomegranates have lots of seeds)
'oddly taken to mean grape' is the wordplay.
'oddly taken' indicates anagramming the letters (letters taken in a strange way).
'to'+'mean'+'grape'='tomeangrape'
'tomeangrape' is an anagram of 'POMEGRANATE'.
(Other definitions for pomegranate that I've seen before include "Fruit with many seeds in edible flesh" , "fruit, please!" , "Semitropical fruit with many seeds" , "seedy stuff" , "tree" .)