Dour, sour, nasty - like excrement? (8)

I believe the answer is:

ordurous

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'excrement?' is the definition.
The definition and answer are not the same part of speech.

'dour sour nasty' is the wordplay.
'nasty' is an anagram indicator.
'dour'+'sour'='doursour'
'doursour' is an anagram of 'ORDUROUS'.

'like' acts as a link.

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I've seen this clue in The Independent.

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