He detests Tim working and holds things back (5,3,4)

I believe the answer is:

stems the tide

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

'holds things back' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'he detests tim working' is the wordplay.
'working' indicates an anagram.
'he'+'detests'+'tim'='hedeteststim'
'hedeteststim' anagrammed gives 'STEMS THE TIDE'.

'and' acts as a link.

Can you help me to learn more?

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.