One of those housing the record holders raises some Camellia Japonica (4)
I believe the answer is:
jail
'one of those housing the record holders' is the definition.
I can't tell whether this definition defines the answer.
'raises some camellia japonica' is the wordplay.
'raises' says the letters should be written backwards.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'liaj' can be found hidden inside 'camellia japonica'.
'liaj' backwards is 'JAIL'.
Can you help me to learn more?
(Other definitions for jail that I've seen before include "(Send to) prison" , "having a stretch here?" , "detention" , "Gaol" , "Nick" .)