College tour around yard (5)
I believe the answer is:
court
'yard' is the definition.
(court is a kind of yard)
'college tour around' is the wordplay.
'college' becomes 'c' ().
'around' is an anagram indicator.
'tour' anagrammed gives 'ourt'.
'c'+'ourt'='COURT'
(Other definitions for court that I've seen before include "Where trials take place" , "Attempt to gain" , "Sports area; woo" , "Royal entourage" , "The Yard" .)