https://www.listenercrossword.com/Solutions/S2022/Notes_4710.html
The clue is "Three miles to the old hospital, furlongs away
*from* one more?".
Three miles to the old = HOUR ("an hour's journey, or (old) three miles" in Chambers)
hospital = H
furlongs = F (away from = removed from)
one more = FOUR (one more than the three previously mentioned)