Regular income from books in Latin American notes (7)
I believe the answer is:
rentals
'regular income from' is the definition.
I can't tell whether this definition defines the answer.
'books in latin american notes' is the wordplay.
I cannot quite see how this works, but
'books' could be 'nt' (abbreviation for New Testament) and 'nt' is located in the answer.
'latin' could be 'l' and 'l' is located in the answer.
'american' could be 'a' (common abbreviation - e.g. in organisation names) and 'a' is located in the answer.
'notes' could be 'res' (more than one re, a musical note) and 'res' is present in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for rentals that I've seen before include "Lets" , "Income from lettings" .)