Crossword Genius

Cheats hiding name sign nicknames (9)

Ross

I believe the answer is:

cognomens

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'nicknames' is the definition.
(I know this)

'cheats hiding name sign' is the wordplay.
'cheats' becomes 'cons' (conning is a kind of cheating).
'hiding' means one lot of letters goes inside another.
'name sign' becomes 'gnome' (I am not sure about this - if you are sure you should believe this answer much more).
'cons' going around 'gnome' is 'COGNOMENS'.

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I've seen this clue in The Times.
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