Material used by wife when going out (7)
I believe the answer is:
webbing
'material' is the definition.
(I know that webbing is a type of material)
'by wife when going out' is the wordplay.
'by' says to put letters next to each other.
'wife when' becomes 'w' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'going out' becomes 'ebbing' (I've seen this in another clue).
'w' next to 'ebbing' is 'WEBBING'.
'used' is the link.
Can you help me to learn more?
(Another definition for webbing that I've seen is " Fabric for straps in military kit".)