The most common and most likely answer to this crossword clue is the 12 letter word STAY-AT-HOME
I've seen this crossword clue in The Guardian
S
T
A
Y
-
A
T
-
H
O
M
E
More clues leading to the result STAY-AT-HOME
- One never out to give message in pandemic
- Unadventurous guy? Then the woman stripped off
- Unadventurous treatment of hot meat, say
- Preferring to be in hot seat — and may need grilling
- Reluctant to explore a hot and steamy novel
- Residential bar by one who doesn't like to go out
- Hot seat may shatter the unadventurous
Buddy explains!

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 STAY-AT-HOME mean?
STAY-AT-HOME adjective- Of a parent, not employed, and rather devoting more time to one's children.
- Of rules or regulations, forbidding the populace to leave their domicile except under emergency or other special circumstances, especially for purposes of quarantine.
- Of or relating to quarantine in the home.