Nimbus, for example (5)
I believe the answer is:
cloud
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nimbus for example</span>' is the definition.<br/ ><span class="explanation-format__explanation">(nimbus is a kind of cloud)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cloud that I've seen before include "Cumulus, for example" , "Nebula" , "Make less transparent" , "Make unclear" , "Eg, cumulus" .)