Jack meets a pleasant girl (6)

I believe the answer is:

janice

'girl' is the definition.

'jack meets a pleasant' is the wordplay.
'jack' becomes 'j' (playing card abbreviation).
'meets' means one lot of letters go next to another.
'pleasant' becomes 'nice' ('nice' is associated in meaning with 'pleasant').
'j'+'a'+'nice'='JANICE'

(Another definition for janice that I've seen is " girl".)

I've seen this clue in The Telegraph.

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