Ethel pleaded to get assistance (4)
I believe the answer is:
help
'assistance' is the definition.
(I know that assistance can be written as help)
'ethel pleaded to get' is the wordplay.
'to get' indicates a hidden word (I've seen 'got' mean this).
'HELP' can be found hidden inside 'ethel pleaded'.
(Other definitions for help that I've seen before include "one by the Beatles" , "Support" , "Charity" , "Contribute to the success of" , "Assistance" .)