Supporter of the art concealed by Achilles, Aeneid going all the way back (5)

I believe the answer is:

easel

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

'supporter' is the definition.

'the art concealed by achilles aeneid going all the way back' is the wordplay.
'EASEL' is hidden backwards within the letters.
However, I am unsure how the hidden word is indicated.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for easel that I've seen before include "Artist's prop" , "art supporter" , "Artistic tripod" , "Artistic support" , "Display tripod" .)

I've seen this clue in the Irish Times and the Irish Times (Crosaire).

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