Hi Billy.
It seems the hose to the oil cooler is leaking, maybe because the jubilee clip as dug into it. use these clips below. or as stated the spring clip.
Also try and trim the end of the hose so its not flared.
example you need to pick the right size.
https://www.ebay.co.uk/itm/153618553019
make sure you get the right size the one in the link may not be the right size , it is just an example.
https://www.ebay.co.uk/itm/221573755...r=522143408382