Troubled conditions right in under top nests (7)

I believe the answer is:

unrests

'troubled conditions' is the definition.
(I've seen this in another clue)

'right in under top nests' is the wordplay.
'right' becomes 'r' (common abbreviation).
'in' is an insertion indicator.
'top' says to take the initial letters.
The first letter of 'under' is 'u'.
'u'+'nests'='unests'
'r' going into 'unests' is 'UNRESTS'.

I've seen this clue in the Sydney Morning Herald.

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