Turn away, taking in opening of drink commercial (6)
I believe the answer is:
advert
'commercial' is the definition.
(I've seen this before)
'turn away taking in opening of drink' is the wordplay.
'turn away' becomes 'avert' (synonyms).
'taking in' means one lot of letters goes inside another.
'opening of' suggests taking the first letters.
The first letter of 'drink' is 'd'.
'avert' placed around 'd' is 'ADVERT'.
(Other definitions for advert that I've seen before include "Refer or allude" , "piece of publicity" , "Public notice" , "Publicity announcement" , "Promotional notice" .)