Fog is surrounding mount? On the contrary (4)
I believe the answer is:
mist
'fog' is the definition.
(I know that mist is a type of fog)
'surrounding mount? on the contrary' is the wordplay.
'surrounding mount?' becomes 'sim' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' says to put letters next to each other.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'contrary' shows that the letters should be reversed in order.
'sim' after 't' is 'tsim'.
'tsim' written backwards gives 'MIST'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for mist that I've seen before include "Watery film" , "low-level cloud" , "Watery vapour" , "Think fog or low cloud" , "Mizzle; light rain" .)