Invest in nurse given what is owed (5)
I believe the answer is:
endue
'invest' is the definition.
(I know that invest can be written as endue)
'nurse given what is owed' is the wordplay.
I cannot quite understand how this works, but
'nurse' could be 'en' (abbreviation for state-enrolled nurse) and 'en' is found within the answer.
'owed' could be 'due' (synonyms) and 'due' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Other definitions for endue that I've seen before include "Endow (with a quality)" , "Invest - provide" , "Endow (poetic)" , "Give (something) a particular quality (literary)" , "Furnish" .)