Crossword Genius

Encourage son to steer clear of medical profession (4)

Ross

I believe the answer is:

urge

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'encourage' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for urge that I've seen before include "Advise earnestly, spur" , "Advocate" , "Sudden inclination to do something" , "Encourage or entreat earnestly" , "Advise strongly to press forward" .)

I've seen this clue in The Telegraph.
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