Highly successful bachelor away with love (5)

I believe the answer is:

boffo

'highly successful' is the definition.
(I've seen this before)

'bachelor away with love' is the wordplay.
'bachelor' becomes 'B' (abbreviation e.g. BA=Bachelor of Arts).
'away' becomes 'off' (synonyms).
'with' means one lot of letters go next to another.
'love' becomes 'o' (love means zero in tennis).
'b'+'off'+'o'='BOFFO'

(Another definition for boffo that I've seen is " Highly successful".)

I've seen this clue in The Guardian.

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