Super network computer in Utah is no longer working (7)
I believe the answer is:
defunct
'no longer working' is the definition.
(I've seen this before)
'super network computer in utah' is the wordplay.
'super' becomes 'def' (I can't explain this - if you can you should believe this answer much more).
'network computer' becomes 'NC' (abbreviation).
'in' is an insertion indicator.
'utah' becomes 'UT' (abbreviation).
'nc' put within 'ut' is 'unct'.
'def'+'unct'='DEFUNCT'
'is' acts as a link.
Can you help me to learn more?
(Other definitions for defunct that I've seen before include "Dead, no longer existing" , "dead and gone" , "No longer in use" , "No longer operative" , "'No longer in force, inactive (7)'" .)