Element of slapstick comedy is captured differently (7,3)
I believe the answer is:
custard pie
'element of slapstick' is the definition.
(I've seen this before)
'is captured differently' is the wordplay.
'differently' indicates anagramming the letters.
'is'+'captured'='iscaptured'
'iscaptured' with letters rearranged gives 'CUSTARD-PIE'.
'comedy' is the link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for custard pie that I've seen before include "It's thrown for laughs" , "Element of slapstick" , "But is one thrown" , "Slapstick missile" , "What featured in comedy" .)