High step, better (7)
I believe the answer is:
upstage
'better' is the definition.
(I've seen this before)
'high step' is the wordplay.
'high' becomes 'up' (associated in meaning).
'step' becomes 'stage' ().
'up'+'stage'='UPSTAGE'
(Other definitions for upstage that I've seen before include "Divert attention from another as actor might in play" , "dwarf?" , "Furthest from the audience (in theatre)" , "Outshine" , "Outdo" .)