Painter clear about ordering Latin-free funeral (6,5)
I believe the answer is:
lucian freud
'painter' is the definition.
'clear about ordering latin-free funeral' is the wordplay.
'clear' becomes 'lucid' ('lucid' can be similar in meaning to 'clear'**).
'about' indicates putting letters inside.
'ordering' is an anagram indicator.
'latin' becomes 'l'.
'free' indicates named letters should be taken away.
'funeral' with 'l' taken away is 'funera'.
'funera' is an anagram of 'anfreu'.
'lucid' placed around 'anfreu' is 'LUCIAN FREUD'.
(Other definitions for lucian freud that I've seen before include "artist" , "Painter, psychoanalyst's grandson" , "A flu inducer (anag) ? painter" .)