Announce two poor grades at college (7)
I believe the answer is:
declare
'announce two' is the definition.
'declare' can be an answer for 'announce' (synonyms). I am not sure about the 'two' bit.
'poor grades at college' is the wordplay.
'poor grades' becomes 'de' (I've seen this in other clues).
'at' is a charade indicator (letters next to each other).
'college' becomes 'clare' (Clare College Cambridge).
'de'+'clare'='DECLARE'
Can you help me to learn more?
(Other definitions for declare that I've seen before include "Proclaim" , "... cut short innings" , "Make clearly known" , "State clearly, announce officially" , "say" .)