South American shot gun with ease, head of Yank caught (8)
I believe the answer is:
guyanese
'south american' is the definition.
(Guyanese is an example)
'shot gun with ease head of yank caught' is the wordplay.
'shot' indicates anagramming the letters.
'with' means one lot of letters go next to another.
'head of' indicates taking the first letters.
'caught' is an insertion indicator.
The initial letter of 'yank' is 'y'.
'gun' put after 'ease' is 'easegun'.
'easegun' is an anagram of 'guanese'.
'guanese' enclosing 'y' is 'GUYANESE'.
(Other definitions for guyanese that I've seen before include "From a South American country, capital Georgetown" , "from South America" .)