Time to order something (4)
I believe the answer is:
'something' is the definition.
(item means a thing)
'time to order' is the wordplay.
'to order' indicates anagramming the letters.
'time' with letters rearranged gives 'ITEM'.
(Other definitions for item that I've seen before include "Indivual unit" , "Single article on a list" , "Individual article or unit" , "One thing - two people, perhaps" , "Two people romantically linked" .)