Maybe stick fork into small fruit (5)
I believe the answer is:
spear
'maybe stick fork' is the definition.
I can't judge whether this defines the answer.
'small fruit' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'fruit' becomes 'pear' (pear is a kind of fruit).
's'+'pear'='SPEAR'
'into' acts as a link.
Can you help me to learn more?
(Other definitions for spear that I've seen before include "Spike" , "Javelin or harpoon" , "mint may be added" , "Weapon; asparagus stem" , "Long pointed weapon" .)