The best, some alternative literature (5)
I believe the answer is:
elite
'the best' is the definition.
(thesaurus)
'some alternative literature' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'ELITE' is hidden within 'alternative literature'.
(Other definitions for elite that I've seen before include "Superior or favoured group of people" , "Group enjoying superior status" , "High society" , "Exclusive group" , "A particular typesize" .)