Crossword Genius

Autumnal work for army type? (7)

Ross

I believe the answer is:

octopus

I'm a little stuck... Click here to teach me more about this clue!

'army type?' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.

'autumnal work' is the wordplay.
'autumnal' becomes 'oct' (I can't justify this - if you can you should give a lot more credence to this answer).
'work' becomes 'opus' (an opus is an artistic work).
'oct'+'opus'='OCTOPUS'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for octopus that I've seen before include "From influential organisation" , "something from La Mer?" , "Creature with eight tentacles" , "Cop-outs (anag.)" , "Sea creature's tentacles served as food" .)

I've seen this clue in The Sun.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.