Drink cold Guinness maybe (4)

I believe the answer is:

alec

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'guinness maybe' is the definition.
I can't judge whether this defines the answer.

'drink cold' is the wordplay.
'drink' becomes 'ale' (ale is a kind of drink).
'cold' becomes 'c' (eg on taps).
'ale'+'c'='ALEC'

Can you help me to learn more?

(Other definitions for alec that I've seen before include "Smart ..., he thinks he knows everything" , "Actor Guinness is smart" , "Guinness (a smart lad?)" , "A smart . . . . is a know-all in lace" , "Boy's name (a smart one?)" .)

I've seen this clue in The Telegraph.

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