Strong drinks for four players (7)

I believe the answer is:

doubles

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

'strong drinks' is the definition.
'doubles' can be an answer for 'drinks'. I'm not certain of the 'strong' bit.

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for doubles that I've seen before include "match in court" , "Made twice as much" , "sort of game" , "Tennis match for four players" , "Like Carton and Darnay" .)

I've seen this clue in The Mirror.

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