Folk hero regularly seen to split apple with head shot (6)
I believe the answer is:
people
'folk' is the definition.
(people is a kind of folk)
'hero regularly seen to split apple with head shot' is the wordplay.
'regularly seen' means one should take alternating letters.
'to split' means one lot of letters goes inside another.
'with head shot' means to remove the first letter (the first letter or head is shot away).
The alternate letters of 'hero' are 'eo'.
'apple' with its first letter removed is 'pple'.
'eo' going inside 'pple' is 'PEOPLE'.
(Other definitions for people that I've seen before include "Newspaper" , "Humans in general" , "Persons in general" , "Men, women and children" , "Folk; citizens" .)