Bump off about right form of seafood (5)
I believe the answer is:
krill
'form of seafood' is the definition.
'krill' can be an answer for 'seafood' (I've seen this before). I'm unsure of the 'form of' bit.
'bump off about right' is the wordplay.
'bump off' becomes 'kill' (I've seen this before).
'about' means one lot of letters goes inside another.
'right' becomes 'r' (common abbreviation).
'kill' placed around 'r' is 'KRILL'.
Can you help me to learn more?
(Other definitions for krill that I've seen before include "Food of whalebone whales" , "Tiny crustaceans" , "Crustaceans, diet of whales" , "seafood" , "Tiny shrimps" .)