Catherine of "Best in Show" (5)

I believe the answer is:

ohara

(Other definitions for ohara that I've seen before include "Scarlett ....., heroine of ''Gone with the Wind'' (1'4)" , "film heroine" , "See 1 Across" , "Scarlett ..... is famous heroine of fiction (1'4)" , "Maureen ..., star of 'The Quiet Man' (1'4)" .)

I've seen this clue in the LA Times and the Universal.

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