Canal-side walkway (7)
I believe the answer is:
towpath
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">canal-side walkway</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 towpath that I've seen before include "Waterside track for horses" , "canal feature" , "Canal walk" , "Riverside walk" , "that runs along bank" .)