One who renders a bandaid? (9)
I believe the answer is:
plasterer
'one who renders a bandaid?' 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.
Can you help me to learn more?
(Other definitions for plasterer that I've seen before include "Artisan" , "Workman who skims along" , "Tradesman" , "One covering walls" , "may get one drunk?" .)