You can make it hot for somebody (3)
I believe the answer is:
tea
'you can' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'it hot for somebody' is the wordplay.
'it' becomes ''t' (abbreviation. e.g. in 'tis).
'hot for somebody' becomes 'ea' (I can't justify this - if you can you should give a lot more credence to this answer).
't'+'ea'='TEA'
'make' is the link.
Can you help me to learn more?
(Other definitions for tea that I've seen before include "Plantation product" , "bush" , "Light afternoon repast" , "Beverage; meal" , "leaves much to be desired?" .)