Doctor pretty as a picture? (8)
I believe the answer is:
tapestry
'a picture?' is the definition.
(I've seen this before)
'doctor pretty as' is the wordplay.
'doctor' is an anagram indicator.
'pretty'+'as'='prettyas'
'prettyas' is an anagram of 'TAPESTRY'.
(Other definitions for tapestry that I've seen before include "needlepoint" , "Complexity" , "work of art" , "decoration" , "Fabric picture" .)