Looks across street for bugs (7)
I believe the answer is:
pesters
'bugs' is the definition.
(I know this)
'looks across street' is the wordplay.
'looks' becomes 'peers' (peering is a kind of looking).
'across' means one lot of letters goes inside another.
'street' becomes 'st' (abbreviation).
'peers' going around 'st' is 'PESTERS'.
'for' acts as a link.
(Other definitions for pesters that I've seen before include "Annoys persistently" , "Harasses" .)