Fruit said to make English rock (11)
I believe the answer is:
pomegranate
'fruit' is the definition.
(I know this)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for pomegranate that I've seen before include "Semitropical fruit with many seeds" , "fruit, please!" , "Many-seeded fruit" , "tree" , "seedy stuff" .)