Husband in rut? Wife always suggests a quick route across the pond (10)
I believe the answer is:
throughway
'a quick route across the pond' is the definition.
I can't tell whether this definition defines the answer.
'husband in rut? wife always' is the wordplay.
'husband in rut?' becomes 'through' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'wife' becomes 'w' (abbreviation).
'always' becomes 'ay' (archaic term for 'always').
'through'+'w'+'ay'='THROUGHWAY'
'suggests' acts as a link.
Can you help me to learn more?
(Another definition for throughway that I've seen is " main road in US".)