Ten work with nurse filling hopper (7)
I believe the answer is:
xenopus
'filling hopper' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'ten work with nurse' is the wordplay.
'ten' becomes 'X' (Roman numeral).
'work' becomes 'opus' (an opus is an artistic work).
'with' says to put letters next to each other.
'nurse' becomes 'EN' (abbreviation for state-enrolled nurse).
'opus' put after 'en' is 'enopus'.
'x'+'enopus'='XENOPUS'
Can you help me to learn more?
(Other definitions for xenopus that I've seen before include "African clawed toad" , "frogs once used for pregnancy testing" .)