Offspring is a girl (5)

I believe the answer is:

issue

'offspring' is the definition.
(I know that offspring can be written as issue)

'is a girl' is the wordplay.
'a girl' becomes 'sue' (girl's name).
'is'+'sue'='ISSUE'

(Other definitions for issue that I've seen before include "Sprogs" , "important subject" , "Offspring, or the point in question" , "Topic (to be addressed)" , "Difficulty" .)

I've seen this clue in The Guardian and The Irish News.

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