Playwright initially types out plays (6)
I believe the answer is:
sports
'plays' is the definition.
('sport' can be a synonym of 'play')
'playwright initially types out' is the wordplay.
'initially' says to take the initial letters.
'types' becomes 'sorts' (I've seen this in another clue).
'out' means one lot of letters goes inside another.
The initial letter of 'playwright' is 'p'.
'p' put into 'sorts' is 'SPORTS'.
(Other definitions for sports that I've seen before include "plays" , "Physical activities" , "Diversions" , "Wears; physical games" , "Wears, displays" .)