No interactions present.
Galium as host plant might narrow down the ID a bit (many weevils are host plant specific)
BMIG website: www.bmig.org.uk (centipedes, millipedes & woodlice)
BMIG Newsletters ~ www.bmig.org.uk/view/resource/bmig-newsletter
BMIG Bulletins ~ www.bmig.org.uk/view/resource/bmig-bulletin
Curculio species feed on Oak, or at least their larvae do, and I'd be surprised if this adult was actually eating Cleavers - did you see any sign that it was eating? If not I guess the interaction should be "associated with" rather than "eating", or perhaps more likely it's not an interaction at all, just where the weevil happened to be standing! It's not always easy to work out whether insects really are interacting with the plants they are found on.
Entomologist and biological recorder
Thanks for your comment, I guess the weevil fell out of the oak and landed near the Galium.
Makes sense to me
Lat/Lng: 51.0, -0.4
OS grid ref: TQ1431