Passes on (6)
I believe the answer is:
relays
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">passes on</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 relays that I've seen before include "Transmits" , "Races with teams and batons" , "Races featuring running teams and baton passing" , "teams of relief workers" , "Receives and passes on" .)