Damage from punch? Count is on, unfortunately (9)

I believe the answer is:

contusion

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'damage from punch?' is the definition.
'contusion' can be an answer for 'damage' (I have seen 'Superficial damage' mean 'contusion' so perhaps 'damage' could also mean 'contusion'). I am not certain of the 'from punch?' bit.

'count is on unfortunately' is the wordplay.
'unfortunately' indicates anagramming the letters (a bad or unfortunate spelling).
'count'+'is'+'on'='countison'
'countison' is an anagram of 'CONTUSION'.

Can you help me to learn more?

(Other definitions for contusion that I've seen before include "Superficial damage" , "Bruise" .)

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