Style we adapted in a melodious way (7)
I believe the answer is:
sweetly
'in a melodious way' is the definition.
(I've seen this before)
'style we adapted' is the wordplay.
'adapted' indicates an anagram.
'style'+'we'='stylewe'
'stylewe' is an anagram of 'SWEETLY'.
(Other definitions for sweetly that I've seen before include "Engagingly, gently" , "In a kind way" , "In an affectionate manner" , "Amiably" , "Melodiously, kindly" .)