Speed the rebuilding of Athens (6)

I believe the answer is:

hasten

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'speed the rebuilding' is the definition.
'hasten' can be an answer for 'speed' (synonyms). I am unsure of the 'the rebuilding' bit.

'of athens' is the wordplay.
'of' indicates an anagram (the answer comes from or 'of' the letters).
'athens' is an anagram of 'HASTEN'.

Can you help me to learn more?

(Other definitions for hasten that I've seen before include "Rush" , "Make faster" , "race? - with 26a" , "Step up" , "dash" .)

I've seen this clue in the Evening Standard.

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