Member of royal family can rebel with trip abroad (6,6)
I believe the answer is:
prince albert
'member of royal family' is the definition.
(husband of Queen Victoria)
'can rebel with trip abroad' is the wordplay.
'with' means one lot of letters go next to another.
'abroad' indicates anagramming the letters.
'can'+'rebel'+'trip'='canrebeltrip'
'canrebeltrip' with letters rearranged gives 'PRINCE ALBERT'.
(Other definitions for prince albert that I've seen before include "Royal personage" , "other half of ruler" , "Victoria's consort" .)