One getting a lewd instinct about Jedward possibly (9,5)

I believe the answer is:

identical twins

'jedward possibly' is the definition.
(I know that Jedward is a identical twins)

'one getting a lewd instinct about' is the wordplay.
'one' becomes 'i' (Roman numeral).
'getting' says to put letters next to each other.
'about' is an anagram indicator.
'a'+'lewd'+'instinct'='alewdinstinct'
'alewdinstinct' is an anagram of 'denticaltwins'.
'i'+'denticaltwins'='IDENTICAL TWINS'

(Another definition for identical twins that I've seen is " Certain siblings".)

I've seen this clue in The Telegraph.

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