Puzzled to be reflected (7)
I believe the answer is:
bemused
'puzzled' is the definition.
(I've seen this before)
'be reflected' is the wordplay.
'reflected' becomes 'mused' ('muse' can be a synonym of 'reflect').
'be'+'mused'='BEMUSED'
'to' is the link.
(Other definitions for bemused that I've seen before include "Confused, bewildered" , "Stupefied" , "Lost for words" , "In the course of puzzling" , "Deep in thought" .)