Classic monster re-created by Hardy? (5)

I believe the answer is:

hydra

I'm a little stuck... Click here to teach me more about this clue!

'classic monster' is the definition.
'hydra' can be an answer for 'monster' (Hydra is an example). I'm not certain of the 'classic' bit.

're-created by hardy?' is the wordplay.
'hardy' can be anagrammed to 'HYDRA'.
Though, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for hydra that I've seen before include "Mythical many-headed snake" , "Femme fatale of legend" , "Multi-headed monster killed by Hercules" , "Nine-headed monster killed by Hercules" , "Persistent trouble" .)

I've seen this clue in the Evening Standard.

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