People not covered in dust changed clothes finally (7)
I believe the answer is:
nudists
'people' is the definition.
(nudist is a kind of person)
'in dust changed clothes finally' is the wordplay.
'changed' indicates an anagram.
'finally' says to take the final letters.
The final letter of 'clothes' is 's'.
'in'+'dust'='indust'
'indust' anagrammed gives 'nudist'.
'nudist'+'s'='NUDISTS'
'not covered' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for nudists that I've seen before include "exposed people" , "Strippers?" , "Things abandoned by those" , "they reveal all" , "they're not in gear" .)