Awful short white skirts provided, one under coat of raver (8)
I believe the answer is:
horrific
'awful' is the definition.
(synonyms)
'white skirts provided one under coat of raver' is the wordplay.
I cannot quite understand how this works, but
'provided' could be 'if' (eg 'provided it's sunny' means 'if it's sunny') and 'if' is located in the answer.
'one' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'short' acts as a link.
Can you help me to learn more?
(Other definitions for horrific that I've seen before include "Dire" , "Frightful" , "Causing fear" , "Inspiring intense fear" , "Arousing feelings of shock and fear" .)