Nuts put TV upside down (6)

I believe the answer is:

testes

'nuts' is the definition.
('testis' can be a synonym of 'nut')

'put tv upside down' is the wordplay.
'put' becomes 'set' (setting is a kind of putting**).
'tv' becomes 'set' (I've seen this in other clues).
'upside down' shows that the letters should be reversed in order.
'set'+'set'='setset'
'setset' backwards is 'TESTES'.

(Another definition for testes that I've seen is " balls".)

I've seen this clue in The Independent.

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