On paper, a try (5)
I believe the answer is:
essay
This could be a double definition.
'on paper' is the first definition.
'essay' can be an answer for 'paper' (I've seen this in another clue). I'm not sure about the 'on' bit.
'a try' is the second definition.
(essay can mean to try or attempt something)
Can you help me to learn more?
(Other definitions for essay that I've seen before include "Attempt; written piece" , "What may be written in exam" , "Written academic work" , "Try; a piece of writing" , "Short treatise" .)