Perhaps Alexander’s drink with Catholic king (5)

I believe the answer is:

aleck

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'perhaps alexander's' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'drink with catholic king' is the wordplay.
'drink' becomes 'ale' (ale is a kind of drink).
'with' is a charade indicator (letters next to each other).
'catholic' becomes 'c' (abbreviation as in RC for Roman Catholic).
'king' becomes 'k' (abbreviation for king in chess).
'ale'+'c'+'k'='ALECK'

Can you help me to learn more?

I've seen this clue in The Hindu.

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