Officers from university caught in fib by those renting (11)
I believe the answer is:
lieutenants
'officers' is the definition.
(lieutenant is a kind of officer)
'university caught in fib by those renting' is the wordplay.
'university' becomes 'u'.
'caught in' means one lot of letters goes inside another.
'fib' becomes 'lie' (I've seen this before).
'by' is a charade indicator (letters next to each other).
'those renting' becomes 'tenants'.
'lie'+'tenants'='lietenants'
'u' going within 'lietenants' is 'LIEUTENANTS'.
'from' is the link.
(Another definition for lieutenants that I've seen is " Army officers".)