A bride's desperate for a shag, perhaps (7)
I believe the answer is:
seabird
'a shag perhaps' is the definition.
(shag is a type of cormorant)
'a bride's desperate' is the wordplay.
'desperate' indicates anagramming the letters.
'a'+'brides'='abrides'
'abrides' is an anagram of 'SEABIRD'.
'for' is the link.
(Other definitions for seabird that I've seen before include "Gull perhaps" , "Gull, for example" , "Marine creature" , "gull, say" , "gannet, perhaps" .)