Place covered by grass is viewed well (7)
I believe the answer is:
reputed
'viewed well' is the definition.
'reputed' can be an answer for 'viewed' (thesaurus). I'm not certain of the 'well' bit.
'place covered by grass' is the wordplay.
'place' becomes 'put' (synonyms).
'covered by' indicates putting letters inside.
'grass' becomes 'reed' (type of grass plant).
'put' inserted inside 'reed' is 'REPUTED'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for reputed that I've seen before include "Generally believed (to be the case)" , "Supposed" , "Erupted (anag)" , "Generally believed to exist" , "Deemed" .)