Glance (7)
'glance' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for peep that I've seen before include "Furtive look" , "Chirp" , "Look surreptitiously - through a keyhole?" , "Look furtively (in both directions)" , "Look furtively or voyeuristically" .)
'glance' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eye that I've seen before include "Place for pupil" , "Ogle" , "See 1" , "Location of 11dn" , "Optic organ" .)
'glance' is the definition.
(I know that glance can be written as glimpse)
This is the entire clue.
(Other definitions for glimpse that I've seen before include "Catch brief sight of" , "Glance, catch sight of" , "Notice" , "vague idea" , "Momentary view (of something)" .)