Cultivated bush is about right — for this? (5)
I believe the answer is:
shrub
'this?' is the definition.
The definition suggests a singular noun which matches the answer.
'cultivated bush is about right' is the wordplay.
'cultivated' is an anagram indicator.
'is about' indicates putting letters inside.
'right' becomes 'r' (abbreviation).
'bush' is an anagram of 'shub'.
'shub' placed around 'r' is 'SHRUB'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for shrub that I've seen before include "Elder" , "Rose, perhaps" , "Small woody tree" , "Mixed drink of rum, sugar, fruit-juice and spice" , "Drink of rum, fruit juice and spices" .)