Endless hewing can make us moan! (5)

I believe the answer is:

whine

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

'us moan' is the definition.
'whine' can be an answer for 'moan' (I've seen this before). I'm unsure of the 'us' bit.

'endless hewing can make' is the wordplay.
'endless' means to remove the last letter.
'can make' indicates anagramming the letters.
'hewing' with its last letter removed is 'hewin'.
'hewin' anagrammed gives 'WHINE'.

Can you help me to learn more?

(Other definitions for whine that I've seen before include "Shrill sound of dog" , "Complaining cry" , "Gripe" , "Grumble" , "Whimper" .)

I've seen this clue in the Evening Standard.

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