Colourful beetle (8)
I believe the answer is:
ladybird
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">colourful beetle</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 ladybird that I've seen before include "Small round spotted beetle" , "Black-spotted red beetle" , "Kind of beetle" , "Common insect" , "Beetle spotted by black" .)