Quiet and unhappy about unwanted sheep (9)

I believe the answer is:

southdown

'sheep' is the definition.
(breed of sheep)

'quiet and unhappy about unwanted' is the wordplay.
'quiet' becomes 'sh'.
'and' says to put letters next to each other.
'unhappy' becomes 'down' (I've seen this before).
'about' is an insertion indicator.
'unwanted' becomes 'out' (as opposed to 'in' and fashionable).
'sh'+'down'='shdown'
'shdown' placed around 'out' is 'SOUTHDOWN'.

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app