Unknown sawfly/wasp?

Unknown sawfly/wasp?

Observation - Unknown sawfly/wasp?. Description: Spotted in a Pembrokeshire hedgerow. Initially thought it might be an ichneumon or sawfly but can't progress this through any online ID guides. Any help appreciated!

Spotted in a Pembrokeshire hedgerow. Initially thought it might be an ichneumon or sawfly but can't progress this through any online ID guides. Any help appreciated!