The flicks (6)
I believe the answer is:
cinema
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the flicks</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 cinema that I've seen before include "Picture house" , "Local form of language" , "Film industry" , "Screening" , "multiplex, perhaps" .)