Stupidly miss site logo for quake expert (12)
I believe the answer is:
seismologist
'quake expert' is the definition.
(expert in earthquakes)
'stupidly miss site logo' is the wordplay.
'stupidly' is an anagram indicator (a stupid ordering of the letters).
'miss'+'site'+'logo'='misssitelogo'
'misssitelogo' anagrammed gives 'SEISMOLOGIST'.
'for' acts as a link.
(Other definitions for seismologist that I've seen before include "Earthquake scientist" , "one could sense the shock waves" , "One who studies earthquakes" .)