She will shortly angle for seafood (9)

I believe the answer is:

shellfish

'for seafood' is the definition.
(shellfish is a kind of seafood)

'she will shortly angle' is the wordplay.
'she' becomes 'shel' ().
'shortly' suggests the final letters.
'angle' becomes 'fish' (synonyms).
The final letter of 'will' is 'l'.
'shel'+'l'+'fish'='SHELLFISH'

(Other definitions for shellfish that I've seen before include "paella ingredient" , "provider of pearls?" , "Crustaceans" , "Oysters, crabs, shrimps etc" , "Category of seafood" .)

I've seen this clue in The Globe and Mail.

Want a hint initially instead of a full solution? Install my app