Unduly hates great speed (5)

I believe the answer is:

haste

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'great speed' is the definition.

'unduly hates' is the wordplay.
'hates' can be anagrammed to 'HASTE'.
But, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for haste that I've seen before include "furious activity" , "Speediness or rush" , "Rash speed" , "make speed" , "Promptitude" .)

I've seen this clue in the Evening Standard.

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