Slight smell (5)
I believe the answer is:
whiff
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slight smell</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 whiff that I've seen before include "Brief or faint smell" , "Suspicion" , "Briefly-caught smell" , "Slight smell" , "Passing odour" .)