Verbally challenge cult to part on equal terms (7)
I believe the answer is:
trisect
'verbally challenge cult to part on equal terms' is the definition.
I can't judge whether this definition defines the answer.
'cult to part on equal terms' is the wordplay.
'cult' becomes 'sect' (religious sect).
'to' says to put letters next to each other (I've seen this in other clues).
'part on equal terms' becomes 'tri' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sect' after 'tri' is 'TRISECT'.
Can you help me to learn more?
(Other definitions for trisect that I've seen before include "cut into thirds" , "Cut into three parts" , "Cut into three pieces" , "breakaway group after sound test" , "Divide into three equal parts" .)