Small fruit as weapons (6)
I believe the answer is:
spears
'weapons' is the definition.
(I know this)
'small fruit' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'fruit' becomes 'pears' (I've seen this before).
's'+'pears'='SPEARS'
'as' is the link.
(Other definitions for spears that I've seen before include "Pointed stems of asparagus" , "Thrown weapons" , "Stems of asparagus as weapons" , "Long weapons with a sharp points" , "Bits of green veg" .)