Vehicle initially delivering Christmas missive? (4)
I believe the answer is:
card
'christmas missive?' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'vehicle initially delivering' is the wordplay.
'vehicle' becomes 'car' (car is a kind of vehicle).
'initially' says to take the initial letters.
The initial letter of 'delivering' is 'd'.
'car'+'d'='CARD'
Can you help me to learn more?
(Other definitions for card that I've seen before include "amusing character" , "caution" , "Christmas greeting" , "Amusing person" , "What may be used for greeting" .)