Anglo-Indian lover starts to go crook (3)
I believe the answer is:
ail
'go crook' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'anglo-indian lover starts' is the wordplay.
'starts' says to take the initial letters.
The first letters of 'anglo indian lover' is 'AIL'.
'to' is the link.
Can you help me to learn more?
(Other definitions for ail that I've seen before include "Become unwell" , "Afflict -- feel unwell" , "Cause to feel indisposed" , "Be ill or unwell" , "Sink" .)