Criticise bad roads and case the source of great troubles (8,3)
I believe the answer is:
pandoras box
'source of great troubles' is the definition.
'pandoras box' can be an answer for 'source' (I have seen 'Source of troubles ' mean 'pandoras box' so perhaps 'source' could also mean 'pandoras box'). I'm not certain of the 'of great troubles' bit.
'criticise bad roads and case' is the wordplay.
'criticise' becomes 'pan' (informal term meaning to criticise heavily).
'bad' is an anagram indicator.
'and' says to put letters next to each other.
'case' becomes 'box' (boxing is a kind of casing).
'roads' is an anagram of 'doras'.
'pan'+'doras'+'box'='PANDORAS BOX'
'the' is the link.
Can you help me to learn more?
(Other definitions for pandoras box that I've seen before include "Mythical container of all the evils of the world" , "In Greek mythology, what the first woman was forbidden to open" , "It was disastrous, for openers" , "Source of extensive but unforeseen troubles" , "legendary source of trouble" .)