Disappear in vain, on the quiet? (6)
I believe the answer is:
vanish
'disappear' is the definition.
(I know that disappear can be written as vanish)
'vain on the quiet?' is the wordplay.
I cannot quite see how this works, but
an anagram of 'vain' is 'vani' which is located in the answer.
'quiet?' could be 'sh' ('sh' is used to tell someone to be quiet) and 'sh' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Other definitions for vanish that I've seen before include "Evanesce" , "Cease to exist" , "Become invisible" , "Disappear suddenly" , "Disappear or fade from sight" .)