Large dog destroying tea garden (5,4)
I believe the answer is:
great dane
'large dog' is the definition.
(I've seen this before)
'destroying tea garden' is the wordplay.
'destroying' is an anagram indicator.
'tea'+'garden'='teagarden'
'teagarden' anagrammed gives 'GREAT DANE'.
(Other definitions for great dane that I've seen before include "Large breed of dog" , "A best friend" , "Kierkegaard, perhaps?" , "Big dog" , "Large 11" .)