Doctor, character round hospital, finds material (6)
I believe the answer is:
mohair
'material' is the definition.
(mohair is a kind of material)
'doctor character round hospital' is the wordplay.
I cannot really see how this works, but
'doctor' could be 'mo' (medical officer) and 'mo' is located in the answer.
'character' could be 'air' (air can mean a character or mood) and 'air' is found within the answer.
'hospital' could be 'h' (abbreviation for hospital) and 'h' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'finds' is the link.
Can you help me to learn more?
(Other definitions for mohair that I've seen before include "Fabric made from fine silky wool of goat" , "It comes from the Angora goat" , "Fine hair fabric" , "Yarn provided by goats" , "coat required" .)