Unfortunately shot the presenter (4)
I believe the answer is:
host
'the presenter' is the definition.
(thesaurus)
'unfortunately shot' is the wordplay.
'unfortunately' indicates an anagram.
'shot' anagrammed gives 'HOST'.
(Other definitions for host that I've seen before include "Does he invite a large number?" , "lot of people" , "This man entertains" , "Army; publican" , "Landlord; army" .)