  One of the firm predictions of the single-scalar field inflationary cosmology
is the consistency relation between the scalar and tensor perturbations. It has
been argued that such a relation, if observationally verified, would offer
strong support for the idea of inflation. In this letter, we critically analyze
the validity of the consistency relation in the context of spinflation.
Spinflaton -- a scalar condensate of the Elko field -- has a single scalar
degree of freedom and leads to the identical acceleration equation as the
single canonical scalar field. We obtain the perturbation equations for the
Einstein-Elko system and show that (i) The scalar perturbations are purely
adiabatic and speed of the perturbations is identically one. (ii) In the
slow-roll limit, the scalar and tensor perturbations are nearly scale-invariant
and (iii) Obtain the consistency relations for the scalar and tensor spectra.
