Sadly, animal knocked over wine (7)
I believe the answer is:
marsala
'wine' is the definition.
(Marsala is an example)
'sadly animal knocked over' is the wordplay.
'sadly' becomes 'alas' ('alas' is used to express regret).
'animal' becomes 'ram' (male sheep).
'knocked over' shows that the letters should be reversed in order.
'alas'+'ram'='alasram'
'alasram' reversed gives 'MARSALA'.
(Other definitions for marsala that I've seen before include "Sicilian dessert wine" , "Alcoholic drink" , "Dessert wine from Sicily" , "Fortified wine from Sicily" , "Sweet Sicilian wine" .)