Former name of Taiwan (7)
I believe the answer is:
formosa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">former name of taiwan</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 formosa that I've seen before include "Taiwan, formerly" , "Old name of island" , "Former name of Taiwan" , "Old name for Taiwan" .)