A lot of undies removed in naughty film (5)

I believe the answer is:

nudie

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'naughty film' is the definition.
'nudie' can be an answer for 'film' (thesaurus). I am not certain of the 'naughty' bit.

'a lot of undies removed' is the wordplay.
'a lot of' means to remove the last letter (most of the word but not all of it).
'removed' indicates an anagram (moved again).
'undies' with its final letter taken away is 'undie'.
'undie' anagrammed gives 'NUDIE'.

'in' is the link.

Can you help me to learn more?

(Other definitions for nudie that I've seen before include "One's uncovered" , "with strippers?" .)

I've seen this clue in The Independent.

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