Article about professional cook's garb? (5)
I believe the answer is:
apron
'cook's garb?' is the definition.
(I've seen this in another clue)
'article about professional' is the wordplay.
'article' becomes 'an' (English indefinite article).
'about' indicates putting letters inside.
'professional' becomes 'pro' (abbreviation).
'an' going around 'pro' is 'APRON'.
(Other definitions for apron that I've seen before include "Protective garment (with strings attached!)" , "conveyor-belt" , "Put on to protect" , "Part of stage in front of the curtain" , "item of clothing in the kitchen" .)