Insect racket from some willow (7,3)
I believe the answer is:
cricket bat
'some willow' is the definition.
(I've seen this before)
'insect racket' is the wordplay.
'insect' becomes 'cricket' (cricket is a kind of insect).
'racket' becomes 'bat' (bat is a kind of racket).
'cricket'+'bat'='CRICKET BAT'
'from' acts as a link.
(Other definitions for cricket bat that I've seen before include "that's used in test" , "One used to glance" , "might be found in the pavilion" , "requirement for four or six, perhaps?" , "One used for hitting" .)