Mythological hero whose most famous achievement was in a labyrinth (7)

I believe the answer is:

theseus

(Other definitions for theseus that I've seen before include "Shakespeare's Duke of Athens" , "classical hero" , "Mythological hero" , "Rescuer of Ariadne" , "Duke of Athens (AMND)" .)

I've seen this clue in The Sunday Times and The Times.

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