A track going up (6)

I believe the answer is:

ascent

'going up' is the definition.
(ascending means going up)

'a track' is the wordplay.
'track' becomes 'scent' (both can mean a trace left by someone).
'a'+'scent'='ASCENT'

(Other definitions for ascent that I've seen before include "Upwards motion" , "way up the mountain" , "A climb or way up" , "An up-slope" , "(A) climb (up mountain)" .)

I've seen this clue in The Irish News and The Telegraph.

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