Tottering (7)
I believe the answer is:
doddery
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tottering</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for doddery that I've seen before include "Unsteady in movement" , "Faltering" , "Old and infirm" , "Shaky" , "Old and feeble" .)