Artist, quiet, extremely lazy in foolhardy way (6)
I believe the answer is:
rashly
'artist quiet extremely lazy in foolhardy way' is the definition.
I can't judge whether this definition defines the answer.
'artist quiet extremely lazy' is the wordplay.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'extremely' suggests removing the centre (only the extremes of the word are used).
'lazy' with its middle taken out is 'ly'.
'ra'+'sh'+'ly'='RASHLY'
Can you help me to learn more?
(Other definitions for rashly that I've seen before include "In a hasty and foolhardy manner" , "Recklessly" , "in reckless fashion" , "Without caution" , "Without forethought" .)