Common garden insect (6)
I believe the answer is:
earwig
'common garden insect' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for earwig that I've seen before include "It's a strange insect, I wager" , "flatterer" , "Pincered insect" , "An insect, I wager (anag.)" , "A bug for Americans" .)