Crossword Genius

Reportedly drink something essential on course (3)

Ross

I believe the answer is:

tee

'something essential on course' is the definition.
(a tee is used on a golf course)

'reportedly drink' is the wordplay.
'reportedly' indicates a 'sounds like' (homophone) clue.
'drink' becomes 'tea' (tea is a kind of drink).
'tea' is a homophone of 'TEE'.

(Other definitions for tee that I've seen before include "Golf-peg" , "Golfer's starting point" , "Golf ball support" , "Golfing item" , "Part of course" .)

I've seen this clue in The Telegraph.
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