Posh replacement for that woman's aboard racehorse for business mogul (5)
I believe the answer is:
sugar
This might be a double definition.
'posh replacement' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'for that woman's aboard racehorse for business mogul' is the second definition.
The definition suggests a singular noun which matches the answer.
Can you help me to learn more?
(Other definitions for sugar that I've seen before include "Sweeten" , "Mild oath (granulated?)" , "Sucrose" , "Sweet ingredient" , "White crystalline sweetener" .)