Is it TV that's weird in whimsical celebration? (9)
I believe the answer is:
festivity
'celebration?' is the definition.
(I know that celebration can be written as festivity)
'is it tv that's weird in whimsical' is the wordplay.
'that's weird' is an anagram indicator.
'in' means one lot of letters goes inside another.
'whimsical' becomes 'fey' (I've seen this before).
'is'+'it'+'tv'='isittv'
'isittv' is an anagram of 'stivit'.
'stivit' inserted into 'fey' is 'FESTIVITY'.
(Other definitions for festivity that I've seen before include "Celebrations" , "time of celebration (" , "Happy celebration" , "Jollification" .)