I got eaten by mistake in Deal (9)
I believe the answer is:
negotiate
'deal' is the definition.
(I've seen this before)
'i got eaten by mistake' is the wordplay.
'by mistake' indicates anagramming the letters.
'i'+'got'+'eaten'='igoteaten'
'igoteaten' is an anagram of 'NEGOTIATE'.
'in' is the link.
(Other definitions for negotiate that I've seen before include "Find a way over (a difficult path)" , "I get a note (anag) - bargain" , "Bring about by mutual agreement" , "Pass round" , "as diplomat does" .)