Golf club employee, one cutting into deal, perhaps (10)
I believe the answer is:
woodworker
'one cutting into deal perhaps' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'golf club employee' is the wordplay.
'golf club' becomes 'wood' (I've seen this in another clue).
'employee' becomes 'worker' (I've seen this in another clue).
'wood'+'worker'='WOODWORKER'
Can you help me to learn more?
(Another definition for woodworker that I've seen is " Carpenter".)