Call for right gin to be drunk (4)
I believe the answer is:
ring
'call' is the definition.
(telephone call)
'for right gin to be drunk' is the wordplay.
'right' suggests the final letters (the letter on the right of the word).
'to be drunk' indicates anagramming the letters.
The final letter of 'for' is 'r'.
'gin' anagrammed gives 'ing'.
'r'+'ing'='RING'
(Other definitions for ring that I've seen before include "item to be fingered?" , "Circus arena" , "Toll" , "It's carried by Frodo" , "token of love" .)