Fair Alice upset about return of height (7)
I believe the answer is:
ethical
'fair' is the definition.
(I've seen this in another clue)
'alice upset about return of height' is the wordplay.
'upset' indicates anagramming the letters.
'about' indicates putting letters inside.
'return of' says the letters should be written backwards.
'height' becomes 'ht' (abbreviation).
'ht' back-to-front is 'th'.
'alice' is an anagram of 'eical'.
'eical' going around 'th' is 'ETHICAL'.
(Other definitions for ethical that I've seen before include "Abiding by moral principles" , "Morally proper" , "In accordance with approved moral standards" , "Approved moral behaviour" , "Moral, principled" .)