For starters, extraordinarily daring displays included in badges worn by pilots in marriage ceremonies (8)
I believe the answer is:
weddings
'marriage ceremonies' is the definition.
(I've seen this before)
'for starters extraordinarily daring displays included in badges' is the wordplay.
'for starters' indicates taking the first letters.
'included in' is an insertion indicator.
'badges' becomes 'wings' (I am not sure about this - if you are sure you should believe this answer much more).
The first letters of 'extraordinarily daring displays' is 'edd'.
'edd' placed within 'wings' is 'WEDDINGS'.
'worn by pilots in' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for weddings that I've seen before include "Marriages" , "Marriage ceremonies" , "Matches" , "Nuptial ceremonies" .)