Walk as if about to fall (7)
I believe the answer is:
stagger
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">walk as if about to fall</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 stagger that I've seen before include "Lurch; astound" , "Teeter" , "Walk unsteadily, from weakness or drink" , "Reel, walk unsteadily" , "bowl over" .)