Disturb Sean eating fruit provided by playwright (13)
I believe the answer is:
shakespearean
'provided by playwright' is the definition.
The answer and definition are different parts of speech. However, adjectives and past participle verbs sometimes define each other.
'disturb sean eating fruit' is the wordplay.
'disturb' becomes 'shake' (I can't justify this - if you can you should give a lot more credence to this answer).
'eating' is an insertion indicator.
'fruit' becomes 'pear' (pear is a kind of fruit).
'sean' enclosing 'pear' is 'spearean'.
'shake'+'spearean'='SHAKESPEAREAN'
Can you help me to learn more?
(Other definitions for shakespearean that I've seen before include "Water" , "Student of the Bard" .)