Where Tony's sheltered until now (6)
I believe the answer is:
hereto
'now' is the definition.
Both the definition and answer are adverbs. Perhaps you can see a link between them that I can't see?
'where tony's sheltered until' is the wordplay.
'HERETO' is hidden within the letters.
However, I'm unsure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for hereto that I've seen before include "to this matter" , "(Appended) to this document" , "so far" , "To this place or time" , "To this document, in legal jargon" .)