Possibly notices part of a military formation (7)

I believe the answer is:

section

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

'part of a military formation' is the definition.
'section' can be an answer for 'part' (synonyms). I'm not sure about the 'of a military formation' bit.

'possibly notices' is the wordplay.
'possibly' indicates an anagram.
'notices' is an anagram of 'SECTION'.

Can you help me to learn more?

(Other definitions for section that I've seen before include "unit" , "branch" , "surgical procedure" , "Element" , "Division, portion" .)

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

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.