Hasten', in chiefly poetic usage (3)

I believe the answer is:

hie

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'hasten'' is the definition.
(synonyms)

I can't explain the rest of the clue.

(Other definitions for hie that I've seen before include "Go quickly (archaic)" , "Be quick (lit.)" , "Make one's way quickly" , "Hasten" , "make haste" .)

I've seen this clue in the Evening Standard.

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