Edge on high in wrong position (7)
I believe the answer is:
offside
'in wrong position' is the definition.
(as in being off-side in football)
'edge on high' is the wordplay.
'edge' becomes 'side' (I've seen this in another clue).
'on' means one lot of letters go next to another.
'high' becomes 'off' (I've seen this in other clues).
'side' put after 'off' is 'OFFSIDE'.
(Other definitions for offside that I've seen before include "Dies off (anag.)" , "Illegal position for soccer player" , "Foul position in soccer" , "A football offence" , "Part of vehicle furthest from kerb" .)