Crossword Genius

Rave madly as you declare (4)

Ross

I believe the answer is:

aver

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

'declare' is the definition.
(averring is a kind of declaring)

'rave madly as you' is the wordplay.
'rave' can be anagrammed to 'AVER'.
However, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for aver that I've seen before include "Firmly maintain" , "Formally assert" , "Say firmly, rave if necessary" , "Declare to be the case" , "State firmly, maybe rave" .)

I've seen this clue in the Evening Standard.
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