Counsellor refusing commercial face mask (5)
I believe the answer is:
visor
'face mask' is the definition.
(mask for one's face)
'counsellor refusing commercial' is the wordplay.
'counsellor' becomes 'advisor' (I've seen this before).
'refusing' is a deletion indicator.
'commercial' becomes 'ad' (abbreviation for advertisement).
'advisor' with 'ad' removed is 'VISOR'.
(Other definitions for visor that I've seen before include "Face-protector" , "Eye shield" , "Helmet's face-cover" , "shade" , "Part of an armour helmet" .)