A bit of a fight for fruit (3)
I believe the answer is:
fig
'fruit' is the definition.
(fig is a kind of fruit)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for fig that I've seen before include "This tree's leaf may cover nudity" , "Fruit with lots of seeds" , "Sweet fleshy fruit, often dried" , "Kind of tree in effigy" , "something unimportant" .)