Denizen of the deep finding work after October (7)
I believe the answer is:
octopus
'denizen of the deep' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'work after october' is the wordplay.
'work' becomes 'opus' (an opus is an artistic work).
'after' means one lot of letters go next to another.
'october' becomes 'Oct' (synonyms).
'opus' put after 'oct' is 'OCTOPUS'.
'finding' is the link.
Can you help me to learn more?
(Other definitions for octopus that I've seen before include "One well-armed" , "Marine creature" , "Scoot up (anag.)" , "Eight-legged creature" , "Eight-armed cephalopod" .)