Great asset in Colombo once (4)
I believe the answer is:
boon
'great asset' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'in colombo once' is the wordplay.
'in' indicates a hidden word.
'BOON' can be found hidden inside 'colombo once'.
Can you help me to learn more?
(Other definitions for boon that I've seen before include "Godsend" , "Blessing - sort of companion?" , "Something beneficial - a blessing" , "Favour, request" , "Beneficial thing" .)