Sweet male I dressed in tailored suit (8)
I believe the answer is:
tiramisu
'sweet' is the definition.
(type of dessert or sweet)
'male i dressed in tailored suit' is the wordplay.
'male' becomes 'ram' (male sheep).
'dressed in' indicates putting letters inside (inserted letters are dressed in others).
'tailored' is an anagram indicator (the letters are customised ).
'ram'+'i'='rami'
'suit' with letters rearranged gives 'tisu'.
'rami' placed within 'tisu' is 'TIRAMISU'.
(Other definitions for tiramisu that I've seen before include "Sweet" , "Arenaceous material" , "Greek dessert" , "I must air the Italian dessert" , "Italian course" .)