Enfant terrible starts to create trouble with the rest
I believe the answer is:
et cetera
'the rest' is the definition.
(I have seen 'the rest' mean 'et cetera' so perhaps 'rest' could also mean 'et cetera')
'enfant terrible starts to create trouble' is the wordplay.
'starts to' indicates taking the first letters.
'trouble' indicates an anagram.
The first letters of 'enfant terrible' is 'et'.
'create' with letters rearranged gives 'cetera'.
'et'+'cetera'='ET CETERA'
'with' acts as a link.
(Other definitions for et cetera that I've seen before include "and the others" , "something similar" , "'And so forth (2,6)'" , "Including other similar items" , "Drive out, expel" .)