be cut out for (or to be) have exactly the right qualities for (a particular role, task, or job). informal

☞ The sense of cut out here is 'formed or fashioned by cutting', as the pieces of a garment are cut out from the fabric.

2013New Statesman Not cut out for heavy work, Nighy was sent down the middle of the concrete pillars to clean their wire interiors, a job that struck him as particularly absurd, given that no one could ever see the result of his labour.