Manage to get that American writing funny stories (6)
I believe the answer is:
runyon
'american writing funny stories' is the definition.
I can't tell whether this defines the answer.
'manage to get that' is the wordplay.
'manage' becomes 'run' (both can mean to organise).
'to get' is a charade indicator (letters next to each other).
'that' becomes 'yon' (archaic term meaning 'that').
'run'+'yon'='RUNYON'
Can you help me to learn more?
(Other definitions for runyon that I've seen before include "Damon ..., writer known for his Broadway stories" , "Damon --, US novelist" , "American writer" , "Damon ..., author of Guys and Dolls" , "Damon, writer 1884-1946" .)