Finishes on high? The other way round hurts (7)
I believe the answer is:
offends
'hurts' is the definition.
('offend' can be a synonym of 'hurt')
'finishes on high?' is the wordplay.
'finishes' becomes 'ends' ('end' can be a synonym of 'finish').
'on' says to put letters next to each other.
'high?' becomes 'off' (both can refer to rotten food).
'ends' put after 'off' is 'OFFENDS'.
'the other way round' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for offends that I've seen before include "Hurts the feelings" , "Insults or causes displeasure to" , "annoys" , "Causes resentment" , "Breaks the law" .)