Unforeseen trouble with nutty brood? (6,4)
I believe the answer is:
banana skin
'unforeseen trouble' is the definition.
'banana skin' can be an answer for 'trouble' (I have seen 'potential trouble' mean 'banana skin' so perhaps 'trouble' could also mean 'banana skin'). I am not sure about the 'unforeseen' bit.
'with nutty brood?' is the wordplay.
'with' means one lot of letters go next to another.
'nutty' becomes 'bananas' (I've seen this in another clue).
'brood?' becomes 'kin' (I am not sure about this - if you are sure you should believe this answer much more).
'bananas' next to 'kin' is 'BANANA SKIN'.
Can you help me to learn more?
(Other definitions for banana skin that I've seen before include "Something causing downfall (colloq.)" , "Potential for accident, embarrassment" , "potential trouble" , "One to slip on" , "A disaster waiting to happen" .)