It is worth a point in Scrabble, which is useful (5)
I believe the answer is:
utile
'useful' is the definition.
(I know that useful can be written as utile)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for utile that I've seen before include "Useful" , "profitable" , "of use" .)