Harry - been to fight with prince - news ignored sign of a much bigger problem (3,2,3,7)
I believe the answer is:
tip of the iceberg
'harry been to fight' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'prince news ignored sign of a much bigger problem' is the wordplay.
I cannot really see how this works, but
'prince' could be 'p' (abbreviation for prince) and 'p' is found in the answer.
'sign' could be 'he' (he is a kind of sign) and 'he' is located in the answer.
'of' could be 'o' and 'o' is present in the answer.
This explanation may well be incorrect...
'with' is the link.
Can you help me to learn more?
(Another definition for tip of the iceberg that I've seen is " hint of a much bigger problem".)