Managed university in America, part of the system we're in (6)
I believe the answer is:
uranus
'part of the system we're in' is the definition.
(planet in our solar system)
'managed university in america' is the wordplay.
'managed' becomes 'ran' (I've seen this before).
'university' becomes 'u'.
'in' indicates putting letters inside.
'america' becomes 'us' (abbreviation for the United States).
'ran'+'u'='ranu'
'ranu' going inside 'us' is 'URANUS'.
(Other definitions for uranus that I've seen before include "Planet beyond Saturn" , "mythological god" , "Planet discovered in 1781 by Herschel" , "Greek god ruler of universe, or a major planet" , "Uses profane language" .)