New iPod — it gets cover impossible to mess up (5-5)

I believe the answer is:

idiot-proof

'impossible to mess up' is the definition.
(I've seen this in another clue)

'new ipod it gets cover' is the wordplay.
'new' indicates anagramming the letters.
'gets' means one lot of letters go next to another.
'cover' becomes 'roof' (roofing is a kind of covering).
'ipod'+'it'='ipodit'
'ipodit' with letters rearranged gives 'idiotp'.
'idiotp'+'roof'='IDIOT-PROOF'

I've seen this clue in The Times.

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