Deviant sex in cemetery introducing good ways to escape (9,5)

'ways to escape' is the definition.
(ways out of a building)

'deviant sex in cemetery introducing good' is the wordplay.
'deviant' indicates an anagram.
'introducing' indicates putting letters inside (some letters introduced or inserted into others).
'good' becomes 'g' (abbreviation).
'sex'+'in'+'cemetery'='sexincemetery'
'sexincemetery' with letters rearranged gives 'emerencyexits'.
'emerencyexits' enclosing 'g' is 'EMERGENCY EXITS'.