Starched collar sounded uncomfortable to wear (5)
I believe the answer is:
rough
'wear' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for rough that I've seen before include "Boisterous - thug" , "Hooligan - lacking refinement" , "Estimated" , "Delinquent" , "The long grass on the golf course" .)