Raw meat Mike left out turned bad (9)
I believe the answer is:
untreated
'raw' is the definition.
('untreated' can be similar in meaning to 'raw')
'meat mike left out turned bad' is the wordplay.
'mike' becomes 'm' (phonetic alphabet: alpha, bravo, charlie etc.).
'left out' is a deletion indicator.
'bad' is an anagram indicator.
'meat' with 'm' taken away is 'eat'.
'eat'+'turned'='eatturned'
'eatturned' with letters rearranged gives 'UNTREATED'.
(Other definitions for untreated that I've seen before include "Not paid for by someone else" , "no medical care given" , "without dressing" .)