Odd pace - cooked lobster for one (7)
I believe the answer is:
decapod
'lobster for one' is the definition.
(I know that lobster is a type of decapod)
'odd pace cooked' is the wordplay.
'cooked' is an anagram indicator (letters cooked into a new form).
'odd'+'pace'='oddpace'
'oddpace' is an anagram of 'DECAPOD'.
(Other definitions for decapod that I've seen before include "sea creature" , "Say, crab" , "Crab or lobster" , "lobster, say" , "Such as shrimp or lobster" .)