Curl of hair (7)
(Other definitions for tress that I've seen before include "Switch" , "Curl - lock" , "is a bit of a shock" , "Long piece of hair" , "Bit of hair" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">curl of hair</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ringlet that I've seen before include "Long curl of hair" , "Cluster of hair" , "sort of lock" , "A curl - kind of tingler" , "Hair feature" .)