Discovered donkey in studio I abandoned, unfortunately (6,3)

'discovered' is the definition.
(smoke out can mean to discover or locate)

'donkey in studio i abandoned unfortunately' is the wordplay.
'donkey' becomes 'moke' (moke is a kind of donkey).
'in' means one lot of letters goes inside another.
'abandoned' suggests deleting specific letters.
'unfortunately' indicates an anagram.
'studio' with 'i' taken away is 'studo'.
'studo' anagrammed gives 'sdout'.
'moke' put into 'sdout' is 'SMOKED OUT'.