The most common and most likely answer to this crossword clue is the 9 letter word NEOLITHIC
I've seen this crossword clue in The Guardian
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More clues leading to the result NEOLITHIC
- Old age impaired one settled here in Rome
- Mostly gas-fired, this Latin period
- In Chile, to recreate Stone Age
- Age-old ethnic conflict over crude oil
- Period at sea once, with books welcome on board
- Born ordinary, left India mostly stupid, as from the Stone Age
- Break into Chile, just like the old days?
- 9 Going out to Chile in old age
- From a bygone age, nasty one fired bumpkin slightly lacking
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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 NEOLITHIC mean?
NEOLITHIC adjective- Hopelessly outdated