Upset as bride makes booby, perhaps (7)
I believe the answer is:
seabird
'booby perhaps' is the definition.
(booby is a kind of seabird)
'upset as bride' is the wordplay.
'upset' indicates anagramming the letters.
'as'+'bride'='asbride'
'asbride' anagrammed gives 'SEABIRD'.
'makes' is the link.
(Other definitions for seabird that I've seen before include "Gull perhaps" , "Marine creature" , "A gull, for instance" , "gull, say" , "Gannet possibly" .)