Bird seed gets inside power tool (9)
I believe the answer is:
sandpiper
'bird' is the definition.
(I know that sandpiper is a type of limicoline bird)
'seed gets inside power tool' is the wordplay.
'seed' becomes 'pip' (as in a fruit pip).
'gets inside' is an insertion indicator.
'power tool' becomes 'sander' (sander is a kind of power tool).
'pip' going into 'sander' is 'SANDPIPER'.
(Other definitions for sandpiper that I've seen before include "knot" , "Ground-dwelling wading bird" , "Small wading bird with a slender bill" , "Stint" , "Coastal wading bird" .)