Point made by monarch in festival (6)
I believe the answer is:
easter
'festival' is the definition.
(Christian festival)
'point made by monarch' is the wordplay.
I cannot really understand how this works, but
'point' could be 'east' (east is a kind of point) and 'east' is located in the answer.
'monarch' could be 'er' (abbreviation for Elizabeth Regina, British Queen) and 'er' is found in the answer.
No letters remain.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for easter that I've seen before include "festival time" , "Time to parade" , "Teaser (anag.)" , "Christian feast of the Resurrection" , "Christian festival of celebration" .)