Took on a day's work with odd bits of tree down (7)

I believe the answer is:

adopted

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

'took on' is the definition.
('adopt' can be a synonym of 'take on')

'a day's work with odd bits of tree down' is the wordplay.
'a day's' becomes 'ad' (I am not sure about this - if you are sure you should believe this answer much more).
'work' becomes 'op' (abbreviation for opus).
'with odd bits of' means one should take alternating letters.
'down' becomes 'd'.
The alternate letters of 'tree' are 'te'.
'ad'+'op'+'te'+'d'='ADOPTED'

Can you help me to learn more?

(Other definitions for adopted that I've seen before include "Like issue raised by others" , "Took into one's family" , "Took under one's wing" , "Chose to follow" , "Espoused" .)

I've seen this clue in The Guardian.

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.