Admire a challenger showing scope (5)

I believe the answer is:

reach

'scope' is the definition.
('reach' can be a synonym of 'scope')

'admire a challenger showing' is the wordplay.
'showing' indicates the answer is hidden within the clue.
'REACH' is hidden within 'admire a challenger'.

(Other definitions for reach that I've seen before include "Scope; get to" , "Arrive at (a place)" , "Attain - continuous extent of water" , "Succeed in getting to" , "Extend an arm" .)

I've seen this clue in The Telegraph.

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