Lyric discussion by urbangorilla 

Cover art for Wax Doll lyrics by Robyn Hitchcock

From the liner notes of Globe of Frogs, 1988: "All of us exist in a swarming, pulsating world, driven mostly by an unconscious that we ignore and misunderstand. Within the framework of 'civilisation' we remain as savage as possible. Against the dense traffic of modern life, we fortify our animal selves with video violence, imaginary sex, and music…but our inflamed and disoriented psyches smoulder on beneath the wet leaves of habit."

I think RH is riffing on the same idea in this song. It alludes to conformity and how society makes us repress our real selves, then we turn to psychologists ("professionla like Alan Breeze...").

"Snip off your harness" makes perfect sense in this context.

@urbangorilla - It is a fine theory, except Alan Breeze is a singer. Here he is doing "I've Got a Lovely Bunch of Coconuts." He died in 1980. https://www.youtube.com/watch?v=8D-T_S5sOlE