Rock Me Amadeus regularly sung as Falco, for instance (7,4)

I believe the answer is:

assumed name

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'falco for instance' is the definition.
I can't judge whether this defines the answer.

'rock me amadeus regularly sung' is the wordplay.
'rock' is an anagram indicator (the solver must 'rock' the letters around).
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternate letters of 'sung' are 'sn'.
'me'+'amadeus'+'sn'='meamadeussn'
'meamadeussn' is an anagram of 'ASSUMED NAME'.

'as' is the link.

Can you help me to learn more?

(Other definitions for assumed name that I've seen before include "Alias" , "I may appear under this" .)

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