Crossword Genius

Let's copy the Latvians? (5)

Ross

I believe the answer is:

letts

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

'latvians?' is the definition.
(I've seen this in another clue)

'let's copy the' is the wordplay.
I cannot really understand how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'let's' could be 'lets' and 'lets' is found in the leftover letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Evening Standard.
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