Mad as a Turk, mother admitted illustrating Hindu text (4,5)
I believe the answer is:
kama sutra
'illustrating hindu text' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'mad as a turk mother admitted' is the wordplay.
'mad' is an anagram indicator.
'mother' becomes 'ma' (Ma is another word for mother or mum).
'admitted' means one lot of letters goes inside another.
'as'+'a'+'turk'='asaturk'
'asaturk' is an anagram of 'kasutra'.
'kasutra' placed around 'ma' is 'KAMA SUTRA'.
Can you help me to learn more?
(Other definitions for kama sutra that I've seen before include "Sanskrit treatise on the art of love" , "Hindu exotic text" , "Hindu sex manual" , "Ancient Sanskrit text on sexual love" , "the other illustrations" .)