They help ninny foremost over social workers (10)
I believe the answer is:
assistants
'they help' is the definition.
'assistants' can be an answer for 'help' (thesaurus). I am not sure about the 'they' bit.
'ninny foremost over social workers' is the wordplay.
'ninny' becomes 'ass' (I've seen this in another clue).
'foremost over' becomes 'ist' (I can't explain this - if you can you should give a lot more credence to this answer).
'social workers' becomes 'ants' (I've seen this in another clue).
'ass'+'ist'+'ants'='ASSISTANTS'
Can you help me to learn more?
(Another definition for assistants that I've seen is " Helpers".)