Green gemstones (8)
I believe the answer is:
emeralds
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">green gemstones</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for emeralds that I've seen before include "Green stones from strangely red males" , "They're preciously green on the Isle" , "Green gems" , "Colours" , "Precious stones for odd red males" .)