Happy-go-lucky (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">happy-go-lucky</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for carefree that I've seen before include "not concerned?" , "Endures" , "Not worried" , "Take a chair" , "Without the burden of responsibility" .)
(Other definitions for freewheeling that I've seen before include "Unconstrained" , "not in cycling gear" , "Unrestrained" , "Coasting" , "Carefree" .)