Not much of a smoke? (5)
I believe the answer is:
whiff
This clue could be a double definition.
'not much' is the first definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'smoke?' is the second definition.
The definition and answer can be both types of natural phenomena as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'of a' is the link.
Can you help me to learn more?
(Other definitions for whiff that I've seen before include "Brief or faint smell" , "Puff" , "Briefly-caught smell" , "A boat" , "Suspicion" .)