Emotional flute composition has artist returning (7)
I believe the answer is:
tearful
'emotional' is the definition.
(I've seen this before)
'flute composition has artist returning' is the wordplay.
'composition' indicates an anagram (letters arranged or composed in a different order).
'has' is an insertion indicator.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'returning' says the letters should be written in reverse.
'ra' in reverse letter order is 'ar'.
'flute' is an anagram of 'teful'.
'teful' placed around 'ar' is 'TEARFUL'.
(Other definitions for tearful that I've seen before include "Weepy" , "visibly distressed" , "Inclined to cry" , "Visibly upset" , "crying" .)