Crossword Genius

Bloody bell sounded by Spooner lookalike (4,6)

Ross

I believe the answer is:

dead ringer

I'm a little stuck... Click here to teach me more about this clue!

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

'bloody bell sounded by spooner' is the wordplay.
I cannot quite understand how this works, but
'bell' could be 'ringer' (I've seen this in other clues) and 'ringer' is found in the answer.
The remaining letters 'dead' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for dead ringer that I've seen before include "Quasimodo at end of novel?" , "Lookalike" , "Exact image" , "Spitting image" , "that might explain silent phone call?" .)

I've seen this clue in The Everyman puzzle in The Observer.
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