Allies in a tizzy about sailor’s girl (8)
I believe the answer is:
isabella
'girl' is the definition.
(girl's name)
'allies in a tizzy about sailor's' is the wordplay.
'in a tizzy' indicates an anagram (being in a tizzy is being confused).
'about' is an insertion indicator.
'sailor' becomes 'ab' (abbreviation for able seaman).
'allies' anagrammed gives 'isella'.
'isella' placed around 'ab' is 'ISABELLA'.
(Other definitions for isabella that I've seen before include "Spanish queen who was patron of Christopher Columbus" , "drab colour" , "Wife of Ferdinand V" , "Bails Lea out for the name" , "Henry VIII's first mother-in-law" .)