Ford is said to have been considered (4)
I believe the answer is:
wade
'ford' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for wade that I've seen before include "Walk through liquid" , "Walk through water or mud" , "Proceed with difficulty" , "Walk with effort through water" , "Ford" .)