Gather together after action - demob happy at last (6)

I believe the answer is:

embody

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

'gather together after' is the definition.
I can't judge whether this defines the answer.

'action demob happy at last' is the wordplay.
'action' indicates anagramming the letters.
'at last' indicates one should take the final letters.
The last letter of 'happy' is 'y'.
'demob' with letters rearranged gives 'embod'.
'embod'+'y'='EMBODY'

Can you help me to learn more?

(Other definitions for embody that I've seen before include "Contain within oneself, incorporate" , "concretise" , "Give a visible form to" , "Give solid form to" , "Give form to (idea)" .)

I've seen this clue in The Independent.

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.