Useful cockney chap (4)

I believe the answer is:

andy

I believe this is a double definition.

'useful cockney' is the first definition.
('handy' - I've seen this before - said with a cockney accent, dropping the 'H')

'chap' is the second definition.
(man's name)

(Other definitions for andy that I've seen before include "- Warhol, twentieth century US artist" , "- Pandy, children's TV series" , "Tabloid cartoon character" , "strip cartoon character" , "-- Capp, cartoon layabout" .)

I've seen this clue in The Guardian.

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