Tray not right for cream (5)
I believe the answer is:
salve
'cream' is the definition.
(thesaurus)
'tray not right' is the wordplay.
'tray' becomes 'salver' (salver is a kind of tray).
'not' indicates named letters should be taken away.
'right' becomes 'r' (common abbreviation).
'salver' with 'r' taken out is 'SALVE'.
'for' acts as a link.
(Other definitions for salve that I've seen before include "Ointment for wounds" , "consolation" , "Soother" , "comfort" , "Relieve - ointment" .)