Singer in boater transported (8)
I believe the answer is:
baritone
'singer' is the definition.
(baritone is a kind of singer)
'in boater transported' is the wordplay.
'transported' indicates an anagram.
'in'+'boater'='inboater'
'inboater' is an anagram of 'BARITONE'.
(Other definitions for baritone that I've seen before include "Adult male singing voice" , "One who can sing" , "Male singer between tenor and bass" , "Male singer looks odd in boater" , "solo voice" .)