College Fashion Day came! (7)
I believe the answer is:
academy
'college' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'fashion day came' is the wordplay.
'fashion' is an anagram indicator.
'day'+'came'='daycame'
'daycame' anagrammed gives 'ACADEMY'.
Can you help me to learn more?
(Other definitions for academy that I've seen before include "Specialist school" , "Learning institution" , "Institution for the advancement of the arts and sciences" , "Educational institution" , "institute" .)