Like comic actor's crack in sequel that's shot (12)
I believe the answer is:
chaplinesque
'like comic actor's' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'crack in sequel that's shot' is the wordplay.
'crack' becomes 'chap' (chap is a kind of crack).
'that's shot' is an anagram indicator.
'in'+'sequel'='insequel'
'insequel' is an anagram of 'linesque'.
'chap'+'linesque'='CHAPLINESQUE'
Can you help me to learn more?
(Other definitions for chaplinesque that I've seen before include "like a tramp?" , "comic style" .)