Maiden's assistance (3)
I believe the answer is:
aid
'assistance' is the definition.
(synonyms)
'maiden's' is the wordplay.
'AID' is hidden in amongst the letters.
But, I am uncertain how this is indicated.
Can you help me to learn more?
(Other definitions for aid that I've seen before include "Auxiliary" , "Care and help" , "technique that can produce pregnancy" , "charity" , "assistant" .)