Model strode out of bounds to use keyboard (9)
I believe the answer is:
archetype
'model' is the definition.
(I know that Archetype is a type of archetype)
'strode out of bounds to use keyboard' is the wordplay.
'strode' becomes 'marched' ('march' can be a synonym of 'stride').
'out of bounds' says to take the centre (the bounds or edges of the word are removed).
'to use keyboard' becomes 'type' (type with a keyboard).
The central letters of 'marched' are 'arche'.
'arche'+'type'='ARCHETYPE'
(Other definitions for archetype that I've seen before include "Creepy hat (anag)" , "They caper about like original model" , "Perfect example" , "Very characteristic example" , "Original mode" .)