Dust it and French polish half of two-man show (8)
I believe the answer is:
duettist
'show' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?
'dust it and french polish half of two-man' is the wordplay.
I cannot quite understand how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found in the answer.
'two' could be 'duet' (duet is a kind of two) and 'duet' is located in the answer.
The remaining letters 'ist' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for duettist that I've seen before include "One who plays or sings with another" , "Player with partner" .)