Daily instruction tedious, yet starts producing good work (7)
I believe the answer is:
charity
'good work' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'daily instruction tedious yet starts' is the wordplay.
'daily' becomes 'char' (both can mean a cleaner).
'starts' suggests taking the first letters.
The initial letters of 'instruction tedious yet' is 'ity'.
'char'+'ity'='CHARITY'
'producing' is the link.
Can you help me to learn more?
(Other definitions for charity that I've seen before include "Giving to the needy" , "Gifts to the needy" , "Miss Pecksniff, for example" , "Love" , "Fund" .)