The festive season displays its charms randomly (9)
I believe the answer is:
christmas
'the festive season' is the definition.
'Christmas' can be an answer for 'season' (Christmas is an example). I am unsure of the 'the festive' bit.
'its charms randomly' is the wordplay.
'randomly' is an anagram indicator (I've seen 'roaming randomly' mean this).
'its'+'charms'='itscharms'
'itscharms' is an anagram of 'CHRISTMAS'.
'displays' is the link.
Can you help me to learn more?
(Other definitions for christmas that I've seen before include "Nativity feast" , "Winter festival" , "The present day" , "Not in general use" , "Yuletide" .)