Adoration is nothing (4)
I believe the answer is:
love
This clue is a double definition.
'adoration' is the first definition.
(thesaurus)
'is nothing' is the second definition.
(I've seen this before)
(Other definitions for love that I've seen before include "powerful emotion" , "See 10" , "Passionate desire" , "It's nothing in tennis" , "Nothing for the Williams sisters?" .)