Consistently, college class lazy in the extreme (9)
I believe the answer is:
uniformly
'consistently' is the definition.
(in a consistent or unvarying way)
'college class lazy in the extreme' is the wordplay.
'college' becomes 'uni' (short for university).
'class' becomes 'form' (synonyms).
'in the extreme' means to remove the middle letters (the letters on the extremes of the word are used).
'lazy' with its centre removed is 'ly'.
'uni'+'form'+'ly'='UNIFORMLY'
(Other definitions for uniformly that I've seen before include "Evenly" , "In a regular way" , "In unvarying manner - while wearing formal clothing?" .)