cut across is a verb meaning "travel across or pass over". It carries 3 recorded senses.
travel across or pass over
“The caravan covered almost 100 miles each day”
be contrary to ordinary procedure or limitations
“Opinions on bombing the Serbs cut across party lines”
Definitions, synonyms and semantic relations for cut across come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.