2.1.17 [SVG1.1:2011] Section 14.3.3, The 'overflow' and 'clip' properties

V0018:

The specification states:

 'clip'
 Value:   <shape> | auto | inherit 
 Initial:   auto 
 Applies to:   elements which establish a new viewport, 'pattern' elements and 'marker' elements 
 Inherited:   no 
 Percentages:   N/A 
 Media:   visual 
 Animatable:   yes 
  
 The ‘clip’ property has the same parameter values as defined in CSS2 ([CSS2], section 11.1.2). Unitless values, which indicate current user coordinates, are permitted on the coordinate values on the <shape>. The value of auto defines a clipping path along the bounds of the viewport created by the given element.

IE9 Mode, IE10 Mode, IE11 Mode, and EdgeHTML Mode (All Versions)

The clip property is not supported.