Crossword Genius

Painter's glee about acquiring registered company (7)

Ross

I believe the answer is:

elgreco

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'painter's' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'glee about acquiring registered company' is the wordplay.
'about' indicates an anagram.
'acquiring' means one lot of letters goes inside another.
'registered' becomes 'R' (abbreviation, as in registered trademark).
'company' becomes 'co' (abbreviation).
'glee' is an anagram of 'elge'.
'elge' enclosing 'r' is 'elgre'.
'elgre'+'co'='ELGRECO'

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I've seen this clue in The Daily Express.
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