"Will ye go ..., go" (folksong) (6)

I believe the answer is:

lassie

(Other definitions for lassie that I've seen before include "Young Scottish girl or Hollywood lost dog" , "TV/film dog" , "Scots girl - film dog" , "Movie role for several dog stars" , "Screen mutt - Scottish girl" .)

I've seen this clue in The Irish Times.

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