Emperor back to get suit off (5)
I believe the answer is:
titus
'emperor' is the definition.
(Roman emperor)
'back to get suit off' is the wordplay.
'back to' suggests the final letters.
'off' indicates anagramming the letters.
The last letter of 'get' is 't'.
'suit' is an anagram of 'itus'.
't'+'itus'='TITUS'
(Other definitions for titus that I've seen before include "& 20 Mervyn Peake character" , ". . . . . Andronicus, Shakespearean tragedy" , "saint" , "recipient of holy letter" , "Roman emperor with arch" .)