Singer, a bass, lifted title … (7)
I believe the answer is:
baronet
'title' is the definition.
(I've seen this before)
'singer a bass lifted' is the wordplay.
'singer' becomes 'tenor' (tenor is a kind of singer**).
'bass' becomes 'b' (musical abbreviation).
'lifted' shows that the letters should be reversed in order (going up in down clue).
'tenor'+'a'+'b'='tenorab'
'tenorab' backwards is 'BARONET'.
(Other definitions for baronet that I've seen before include "Lowest hereditary title of honour" , "Aristocrat" , "Hereditary knight" , "Bent oar (anag.)" , "Sir Somebody-or-other?" .)