More disorderly reforms united leaders of Irish Republic (8)

I believe the answer is:

untidier

'more disorderly' is the definition.
('untidy' can be similar in meaning to 'disorderly')

'reforms united leaders of irish republic' is the wordplay.
'reforms' indicates an anagram.
'leaders of' says to take the initial letters.
The initial letters of 'irish republic' is 'ir'.
'united'+'ir'='unitedir'
'unitedir' is an anagram of 'UNTIDIER'.

(Another definition for untidier that I've seen is " Less neat".)

I've seen this clue in The Independent.

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