Furtive look (4)
(Other definitions for leer that I've seen before include "Suggestive or sneering grin" , "unpleasant look" , "Give lascivious look" , "Give sly look" , "Lewd look" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">furtive look</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for peek that I've seen before include "Furtive glance" , "Sly look, peep" , "Secret look" , "Repeatedly look like this" , "Take brief or surreptitious look" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">furtive look</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for peep that I've seen before include "Chirp" , "Look surreptitiously - through a keyhole?" , "Look quickly" , "Peek" , "Look secretly" .)