Chances of mapmaker concealing direct debit (4)

I believe the answer is:

odds

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'chances' is the definition.
(the odds of something happening)

'of mapmaker concealing direct debit' is the wordplay.
'of' becomes 'o''.
'mapmaker' becomes 's' (I am not sure about this - if you are sure you should believe this answer much more).
'concealing' indicates putting letters inside.
'direct debit' becomes 'DD' (abbreviation).
'o'+'s'='os'
'os' placed around 'dd' is 'ODDS'.

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(Other definitions for odds that I've seen before include "They could be evens" , "Betting price" , "Variance" , "Bookies give them" , "Chance" .)

I've seen this clue in The Irish Times.

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