It would be an easy thing for disaffected outsiders to interrupt benefit (6)
I believe the answer is:
doddle
'it would be an easy thing' is the definition.
The definition suggests a singular noun which matches the answer.
'disaffected outsiders to interrupt benefit' is the wordplay.
'outsiders' means to remove the middle letters (only the letters on the outside of the word remain).
'to interrupt' means one lot of letters goes inside another.
'benefit' becomes 'dole' (informal term for a state benefits).
'disaffected' with its centre removed is 'dd'.
'dd' put within 'dole' is 'DODDLE'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for doddle that I've seen before include "Piece of cake" , "pushover" , "gift" , "Absurdly simple" , "In slang, an easy task" .)