Show Conservative military group beginning of Times Jumbo, say (8)
I believe the answer is:
aircraft
'jumbo say' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'show conservative military group beginning of times' is the wordplay.
'show' becomes 'air' (both can mean broadcast).
'conservative' becomes 'C' (UK political abbreviation).
'military group' becomes 'RAF' (Royal Air Force).
'beginning of' indicates taking the first letters.
The first letter of 'times' is 't'.
'air'+'c'+'raf'+'t'='AIRCRAFT'
Can you help me to learn more?
(Other definitions for aircraft that I've seen before include "Flying machines" , "High-flier" , "Vehicle that can fly" , "Flier" , "Planes" .)