Painter has left it around? (8)
I believe the answer is:
portrait
'painter' is the definition.
(portrait painter is a kind of painter)
'left it around?' is the wordplay.
'left' becomes 'port' (left side of a ship - opposite of starboard).
'it' becomes 'tiar' (I can't justify this - if you can you should give a lot more credence to this answer).
'around?' says the letters should be written in reverse (I've seen 'around' mean this).
'tiar' back-to-front is 'rait'.
'port'+'rait'='PORTRAIT'
'has' acts as a link.
Can you help me to learn more?
(Other definitions for portrait that I've seen before include "Artistic representation (of a person)" , "(Person's) painting" , "Head/shoulders painting" , "Painting of a real person" , "Image of a person" .)