The most common and most likely answer to this crossword clue is the 8 letter word ENSHRINE
I've seen this crossword clue in The Guardian
E
N
S
H
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E
More clues leading to the result ENSHRINE
- Protect nurse: mum concerned with nursing home
- ‘Treasure’ screwed her nine times, finally
- Cherish sinner he converted
- Treasure in French saint’s tomb
- Cherish men forgoing male hour during function
- Cherish sinner — he must be converted
- Preserve directions on right to wear glitter
- Preserve offered by inns here for spreading
- Sinner he reformed and put in a hallowed place
- Treasure — Henri nefariously stashes part to keep quiet
Buddy explains!

The straight part
We know that "Cherish/Cherish" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cherish/cherish = enshrine.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 ENSHRINE mean?
ENSHRINE verb- To enclose (a sacred relic etc.) in a shrine or chest.
- To preserve or cherish (something) as though in a shrine; to preserve or contain, especially with some reverence.
- To protect an idea, ideal, or philosophy within an official law or treaty