Greeting shrouded in fog and fluff (6)
I believe the answer is:
mishit
'fluff' is the definition.
Both the definition and answer are singular nouns.
Perhaps there's a link between them I don't understand?
'greeting shrouded in fog' is the wordplay.
'greeting' becomes 'hi' (hi is a kind of greeting).
'shrouded in' indicates putting letters inside.
'fog' becomes 'mist' (synonyms).
'hi' inserted within 'mist' is 'MISHIT'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for mishit that I've seen before include "Poorly executed strike" , "shank?" , "Strike a ball so that it goes in the wrong direction" , "Strike (a ball) badly" .)