Ma's said to groan, troubling helpful neighbours (4,10)
I believe the answer is:
good samaritans
'helpful neighbours' is the definition.
(helpful or good-natured people)
'ma's said to groan troubling' is the wordplay.
'troubling' indicates an anagram (letters damaged or in trouble).
'mas'+'said'+'to'+'groan'='massaidtogroan'
'massaidtogroan' is an anagram of 'GOOD SAMARITANS'.
(Other definitions for good samaritans that I've seen before include "Helpful folk" , "Those offering help" .)