Crossword Genius

One refusing to buy anything (7)

Ross

I believe the answer is:

sceptic

'one refusing to buy anything' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

This is the entire clue.

(Other definitions for sceptic that I've seen before include "Disbeliever" , "I may doubt that" , "One who doubts accepted opinions" , "One questioning accepted opinions" , "Person who tends to disbelieve" .)

I've seen this clue in The Guardian.
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