Our writers are full of cliches just as old barns are full of bats. There is obviously no rule about this, except that anything that you suspect of being a cliche undoubtedly is one and had better be removed.
“Banks operate like a man who either wears his trousers round his chest, stifling breathing, as now, or round his ankles, exposing his assets. We want their trousers tied round their middle: steady lending growth; particularly to productive British business, especially small scale enterprise.”