Uneven walk (4)
I believe the answer is:
limp
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">uneven walk</span>' is the definition.<br/ ><span class="explanation-format__explanation">(to limp is to walk unevenly)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for limp that I've seen before include "Walk with uneven gait" , "obstacle to smooth progress" , "Walk with an uneven stop" , "Lacking stiffness" , "Walk stiffly - lacking energy" .)