Garnish daily covering one folding recliner (9)
I believe the answer is:
deckchair
'folding recliner' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'garnish daily covering one' is the wordplay.
'garnish' becomes 'deck' (I can't justify this - if you can you should give a lot more credence to this answer).
'daily' becomes 'char' (I've seen this before).
'covering' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'char' placed around 'i' is 'chair'.
'deck'+'chair'='DECKCHAIR'
Can you help me to learn more?
(Other definitions for deckchair that I've seen before include "place to sit" , "support for holidaymaker" , "it's useful on Blackpool beach" .)