Crossword Genius

Helmeted woman’s time in Bahrain, travelling without husband (9)

Ross

I believe the answer is:

britannia

'helmeted woman's' is the definition.
(helmet-wearing personification of Britain)

I don't understand how the rest of the clue works.

(Other definitions for britannia that I've seen before include "Figure on standard 50 pence coin" , "A monetary figure" , "In song, she used to rule the waves" , "She who musically rules the waves" , "National representative" .)

I've seen this clue in The Times.
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