Erin (7)
I believe the answer is:
ireland
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">erin</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 ireland that I've seen before include "Eire" , "Erin" , "music's John" , "music writer" , "Country west of Wales" .)