Ideal ground secures backing for facilities (6,4)

I believe the answer is:

ladies room

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'ideal ground secures backing for facilities' is the definition.
I can't tell whether this definition defines the answer.

'ideal ground secures backing' is the wordplay.
'ground' is an anagram indicator ('grind' the letters into a new form).
'secures' becomes 'moors' (mooring is a kind of securing).
'backing' says the letters should be written in reverse.
'moors' backwards is 'sroom'.
'ideal' is an anagram of 'ladie'.
'ladie'+'sroom'='LADIES' ROOM'

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I've seen this clue in The Times.

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