Telephones (5)
I believe the answer is:
rings
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">telephones</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rings that I've seen before include "Makes a circuit" , "They fix the markets" , "Calls; circles" , "jewellery" , "Spaces used for boxing" .)