Crossword Genius

Man whose lemonade you’ll put the whisky in? (5)

Ross

I believe the answer is:

spike

I'm a little stuck... Click here to teach me more about this clue!

'put the whisky in?' is the definition.
'spike' can be an answer for 'put' (thesaurus). I am unsure of the 'the whisky in?' bit.

'man whose lemonade you'll' is the wordplay.
I cannot really understand how this works, but
'man' could be 'ike' and 'ike' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for spike that I've seen before include "Long sharp-pointed implement" , "Prong" , "Metal point" , "Impale" , "Sharp point; flower cluster" .)

I've seen this clue in the Evening Standard.
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