Power walk sports competition (3-2)

I believe the answer is:

pro-am

'sports competition' is the definition.
(sports event featuring professionals and amateurs)

'power walk' is the wordplay.
'power' becomes 'p'.
'walk' becomes 'roam'.
'p'+'roam'='PRO-AM'

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.