Clearing voyeur, essentially for suggestive look (4,3)
I believe the answer is:
glad eye
'suggestive look' is the definition.
(glad eye can mean a seductive look)
'clearing voyeur essentially' is the wordplay.
'clearing' becomes 'glade' (synonyms).
'essentially' means to look at the middle letters.
The middle letters of 'voyeur' are 'ye'.
'glade'+'ye'='GLAD EYE'
'for' acts as a link.
(Other definitions for glad eye that I've seen before include "Seductive look" , "Seductive glance" , "A look that could excite" , "amorous glance" , "look to attract lover?" .)