National press once grasping English most swiftly? (8)
I believe the answer is:
fleetest
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for fleetest that I've seen before include "Lets feet go most swiftly" , "Most speedy" , "Very quick" , "Quickest" , "Best at running" .)