Yard shut about when in the week? (8)
I believe the answer is:
thursday
'when in the week?' is the definition.
(day of the week)
'yard shut about' is the wordplay.
'about' indicates an anagram.
'yard'+'shut'='yardshut'
'yardshut' with letters rearranged gives 'THURSDAY'.
(Other definitions for thursday that I've seen before include "several hours" , "child born then has far to go" , "The Man Who Was -- (G.K. Chesterton)" , "Day for the Norse god of thunder" , "Shut yard (anag.)" .)