Australia's __ Barrier Reef (5)
I believe the answer is:
great
(Other definitions for great that I've seen before include "Dickens novel about Pip" , "Enormous" , "Excellent (colloq.)" , "Of considerable size" , "Grand" .)
I believe the answer is:
great
(Other definitions for great that I've seen before include "Dickens novel about Pip" , "Enormous" , "Excellent (colloq.)" , "Of considerable size" , "Grand" .)