I'm the plaintiff, admitting small problem (5)

I believe the answer is:

issue

I'm a little stuck... Click here to teach me more about this clue!

'problem' is the definition.
(issue can mean a problem or difficulty)

'i'm the plaintiff admitting small' is the wordplay.
'i'm' becomes 'i' (I've seen this in other clues).
'the plaintiff' becomes 'sue' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'admitting' is an insertion indicator (admit can mean to welcome in or accept).
'small' becomes 's' (abbreviation - e.g. clothes size).
'sue' placed around 's' is 'ssue'.
'i'+'ssue'='ISSUE'

Can you help me to learn more?

(Other definitions for issue that I've seen before include "Topic (to be addressed)" , "Progeny of, send out" , "important point" , "Subject of debate" , "Matter of dispute" .)

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app