Look back just the same (4)
I believe the answer is:
peep
'look' is the definition.
(peep can mean to look at something)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for peep that I've seen before include "Look secretly" , "Sly look (palindrome)" , "Look quickly" , "Look slyly" , "Palindromic glimpse" .)