Airline right to have drinking area (3)

I believe the answer is:

bar

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'drinking area' is the definition.
'bar' can be an answer for 'area' (bar is a kind of area). I'm unsure of the 'drinking' bit.

'airline right' is the wordplay.
'airline' becomes 'BA' (British Airways).
'right' becomes 'r' (common abbreviation).
'ba'+'r'='BAR'

'to have' is the link.

Can you help me to learn more?

(Other definitions for bar that I've seen before include "saving" , "sovereign" , "Barrier; pressure unit" , "Hostelry" , "Pub; restriction" .)

I've seen this clue in The Sun.

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