Hotel employee's dark period overcoming drink? (5,6)

I believe the answer is:

night porter

'hotel employee's' is the definition.

'dark period overcoming drink?' is the wordplay.
'dark period' becomes 'night' (period of the day when it's dark).
'overcoming' says to put letters next to each other (in a down clue, some letters go above others).
'drink?' becomes 'porter' (porter is a kind of drink).
'night'+'porter'='NIGHT-PORTER'

(Another definition for night porter that I've seen is " Building attendant for the hours of darkness".)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app