Excessively, as it seems to Oscar (3)

I believe the answer is:

too

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'excessively' is the definition.
(to too great a degree)

'to oscar' is the wordplay.
'oscar' becomes 'O' (phonetic alphabet: alpha, bravo, charlie etc.).
'to'+'o'='TOO'

'as it seems' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

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(Other definitions for too that I've seen before include "Also; overly" , "Likewise" , "On top - also" , "Unduly" , "What a pity!" .)

I've seen this clue in the Evening Standard.

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