Considers dismissing Enid Bridge (5)
I believe the answer is:
cross
'bridge' is the definition.
(I've seen this in other clues)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for cross that I've seen before include "means of execution" , "Vexed" , "Annoyed - traverse" , "Peeved" , "Maybe mule" .)