1) Ascribe 2) Assign 3) Attribute 4) Embody in an outward form 5) Externalise 6) Impute 7) Project 8) Regard as objective 9) To embody 10) To make external 11) To project Found on https://www.crosswordclues.com/clue/externalize
Ex·ter'nal·ize transitive verb To make external; to manifest by outward form. « Thought externalizes itself in language.» Soyce. Found on http://www.encyclo.co.uk/webster/E/95
to make external; embody in an outward form. · to regard as consisting of externals. · to regard or treat as being caused by externals; attribute to external causes: to externalize one's difficulties. · to direct (the personality) outward in social relationships. Found on https://www.infoplease.com/dictionary/externalize