Dressing for every final indoors (7)
I believe the answer is:
plaster
'dressing' is the definition.
(I have seen 'Medical dressing ' mean 'plaster' so perhaps 'dressing' could also mean 'plaster')
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for plaster that I've seen before include "one sticking on through injury?" , "Small wound dressing" , "____ of Paris" , "Wall surface" , "Sticky bandage" .)