In which one regards blossoms (4,6)
I believe the answer is:
rose garden
'in' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'one regards blossoms' is the wordplay.
'blossoms' indicates an anagram.
'one'+'regards'='oneregards'
'oneregards' is an anagram of 'ROSE-GARDEN'.
'which' is the link.
Can you help me to learn more?
(Other definitions for rose garden that I've seen before include "Cultivated area" , "this was never promised you" , "Growing area" , "Horticultural feature" , "floral feature" .)