Behold, transformed into salve (6)
I believe the answer is:
lotion
'salve' is the definition.
(I've seen this before)
'behold transformed into' is the wordplay.
'behold' becomes 'lo'.
'transformed' indicates an anagram.
'into' anagrammed gives 'tion'.
'lo'+'tion'='LOTION'
(Other definitions for lotion that I've seen before include "Medicinal or cosmetic liquid preparation" , "Thick liquid for skin" , "Unguent" , "Soothing or antiseptic preparation" , "Medicinal or healing liquid" .)