Want this person to block unfortunate cut in income (7)
I believe the answer is:
paucity
'want' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'this person to block unfortunate cut in income' is the wordplay.
'this person' becomes 'I' (the person writing).
'to block' indicates putting letters inside (upper walls off glass inside formal).
'unfortunate' is an anagram indicator.
'in' means one lot of letters goes inside another.
'income' becomes 'pay' (income from a job).
'cut' with letters rearranged gives 'uct'.
'i' going inside 'uct' is 'ucit'.
'ucit' put inside 'pay' is 'PAUCITY'.
Can you help me to learn more?
(Other definitions for paucity that I've seen before include "Poverty" , "Insufficiency, dearth" , "Shortage" , "deficiency" , "Dearth, scarcity" .)