Looked good impaled (7)
I believe the answer is:
glanced
'looked' is the definition.
(glancing is a kind of looking)
'good impaled' is the wordplay.
'good' becomes 'g' (abbreviation).
'impaled' becomes 'lanced' (impaled with a lance).
'g'+'lanced'='GLANCED'
(Other definitions for glanced that I've seen before include "Peeked" , "Glimpsed" , "Took a quick look" , "Looked quickly" , "Looked briefly or bounced off" .)