A storm of a play (7)
I believe the answer is:
tempest
I believe this is a double definition.
'a storm' is the first definition.
(tempest is a kind of storm)
'a play' is the second definition.
(I've seen this before)
'of' acts as a link.
(Other definitions for tempest that I've seen before include "Furore" , "A violent storm like Shakespeare's" , "Violent windy storm" , "Play (with rough weather)" , "Shakesperian storm" .)