Sistine Chapel figure (4)
I believe the answer is:
'sistine chapel figure' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for adam that I've seen before include "one might confuse with total stranger" , "First man of Genesis" , "One of our common ancestors?" , "Robert-, eighteenth century Scots architect" , "Scottish architect, d.1792" .)