College essay’s covered in that stuff (7)
I believe the answer is:
trinity
'college' is the definition.
(I've seen this before)
'essay's covered in that stuff' is the wordplay.
'essay' becomes 'try' (synonyms).
'covered in' becomes 'init' (I can't explain this - if you can you should give a lot more credence to this answer).
'that stuff' is an insertion indicator.
'try' placed around 'init' is 'TRINITY'.
Can you help me to learn more?
(Other definitions for trinity that I've seen before include "Father, Son and Holy Spirit" , "Holy triad" , "House" , "Oxbridge college" , "Cambridge college founded by Henry VIII" .)