Eccentric in close possesses ten dictionaries (8)

I believe the answer is:

lexicons

'dictionaries' is the definition.
('lexicon' can be a synonym of 'dictionary')

'eccentric in close possesses ten' is the wordplay.
'eccentric' is an anagram indicator.
'possesses' means one lot of letters goes inside another.
'ten' becomes 'X' (Roman numeral).
'in'+'close'='inclose'
'inclose' with letters rearranged gives 'leicons'.
'leicons' enclosing 'x' is 'LEXICONS'.

(Another definition for lexicons that I've seen is " Dictionaries".)

I've seen this clue in The Telegraph.

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