The most common and most likely answer to this crossword clue is the 8 letter word BEDSIDES
I've seen this crossword clue in The Sunday Telegraph
B
E
D
S
I
D
E
S
Buddy explains!
The straight part
We know that "Places for hospital visitors" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case places for hospital visitors = bedsides.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does BEDSIDES mean?
BEDSIDES noun- A position at the side of one's bed.