Character of Fair City perhaps provides easily worked material (9)
I believe the answer is:
soapstone
'material' is the definition.
(soapstone is a kind of material)
'character of fair city perhaps provides easily worked' is the wordplay.
I cannot quite see how this works, but
'character' could be 'tone' (tone can mean a character or mood) and 'tone' is located in the answer.
'of' could be 'o' and 'o' is found in the answer.
The remaining letters 'saps' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for soapstone that I've seen before include "Compact variety of talc - teaspoons (anag)" , "Soft rock mainly of talc" , "Soft steatitic rock" , "Soft talcy rock" , "Soft form of rock" .)