Whole college followed by boy (6)
I believe the answer is:
united
'whole' is the definition.
('united' can be similar in meaning to 'whole')
'college followed by boy' is the wordplay.
'college' becomes 'uni' (I've seen this in other clues).
'followed by' says to put letters next to each other.
'boy' becomes 'ted' (I've seen this before**).
'uni'+'ted'='UNITED'
(Other definitions for united that I've seen before include "Joined into a single entity" , "Agreed" , "Manchester City's local rivals" , "Joined or combined" , "See 9" .)