Craftspeople come in beset by grumbles (10)

I believe the answer is:

carpenters

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

'grumbles' is the definition.
Although both the answer and definition are verbs in their -s form, I cannot see how they can define each other.

'craftspeople come in beset by' is the wordplay.
'craftspeople' becomes 'carps' (I can't justify this - if you can you should believe this answer much more).
'come in' becomes 'enter' (synonyms).
'beset by' indicates putting letters inside ('beset' could historically mean 'cover').
'carps' placed around 'enter' is 'CARPENTERS'.

Can you help me to learn more?

I've seen this clue in The Times.

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.