Looked furtively (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">looked furtively</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for peeped that I've seen before include "Looked covertly" , "Looked surreptitiously, maybe through keyhole" , "Looked furtively at, like a certain Tom" .)
(Other definitions for peered that I've seen before include "Having been made a Lord < examined" , "Look searchingly" , "Looked searchingly" , "Looked through narrowed eyes" , "Looked closely" .)