Roughly patching bedwear (8)
I believe the answer is:
nightcap
'bedwear' is the definition.
I can't tell whether this definition defines the answer.
'roughly patching' is the wordplay.
'roughly' indicates anagramming the letters.
'patching' is an anagram of 'NIGHTCAP'.
Can you help me to learn more?
(Other definitions for nightcap that I've seen before include "Take before bed or wear in bed" , "Last drink of the day?" , "Head covering" , "that may go to one's head?" , "Bed wear - late drink" .)