Endlessly finance smallest issue - it's for charity (3,3)
I believe the answer is:
fun run
'for charity' is the definition.
I know nothing about this answer so I can't tell whether this works.
'endlessly finance smallest issue' is the wordplay.
'endlessly' means to remove the last letter.
'finance' becomes 'fund' (funding is a kind of financing).
'smallest issue' becomes 'run' (I've seen this before. I am not sure about the 'smallest' bit.).
'fund' with its final letter taken off is 'fun'.
'fun'+'run'='FUN RUN'
'it's' is the link.
Can you help me to learn more?
(Other definitions for fun run that I've seen before include "Unserious race" , "Charity sporting event" , "Long distance race for amusement" , "event to raise money" , "Footrace for enjoyment" .)