University isn't ordering components (5)
I believe the answer is:
units
'components' is the definition.
(I've seen this in another clue)
'university isn't ordering' is the wordplay.
'university' becomes 'U' (abbreviation for university).
'ordering' is an anagram indicator.
'isnt' is an anagram of 'nits'.
'u'+'nits'='UNITS'
(Other definitions for units that I've seen before include "Individual things, like pieces of furniture" , "Single items or standard quantities" , "Single parts of a whole" , "Single undivided wholes" , "Detachments" .)