Ineptitude evident since slums rebuilt (10)

I believe the answer is:

clumsiness

'ineptitude' is the definition.
(I know that ineptitude can be written as clumsiness)

'since slums rebuilt' is the wordplay.
'rebuilt' indicates an anagram.
'since'+'slums'='sinceslums'
'sinceslums' is an anagram of 'CLUMSINESS'.

'evident' is the link.

I've seen this clue in The Irish Times.

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