Discovered this could make do fun? (5,3)
I believe the answer is:
found out
'discovered' is the definition.
(finding out is a kind of discovering)
'could make do fun?' is the wordplay.
I cannot quite see how this works, but
'make' could be 'do' (do can mean to make or prepare) and 'do' is located in the answer.
'do' could be 'ut' (synonyms) and 'ut' is present in the answer.
This explanation may well be incorrect...
'this' is the link.
Can you help me to learn more?
(Other definitions for found out that I've seen before include "Ascertained" , "Discovered" .)