  We present optical spectropolarimetry and spectroscopy of the broad-lined
Type Ic (Ic-bl) SN 2014ad. Our spectropolarimetric observations cover 7 epochs,
from -2 days to 66 days after V-band maximum, and the spectroscopic data were
acquired from -2 days to +107 days. The photospheric velocity estimates showed
ejecta speeds similar to those of SN 1998bw and other SNe associated with GRBs.
The spectropolarimetric data revealed aspherical outer ejecta and a nearly
spherical interior. The polarisation associated with O I {\lambda}7774 and the
Ca II infrared triplet suggests a clumpy and highly asymmetrical distribution
of these two species within the ejecta. Furthermore it was shown that the two
line forming regions must have been spatially distinct and oxygen was found to
have higher velocities than calcium. Another oxygen line-forming region was
also identified much closer to the core of the explosion and distributed in a
spherical shell. It is difficult to reconcile the geometry of the deeper ejecta
with a jet driven explosion, but the high ejecta velocities of SN 2014ad are
typical of those observed in SNe Ic-bl with GRBs, and the behaviour of the
oxygen and calcium line-forming regions is consistent with fully jet-driven
models. The metallicity of the host galaxy of SN 2014ad was also calculated and
compared to that of the hosts of other SNe Ic-bl with and without GRBs, but due
to the overlap in the two populations no conclusion could be drawn.
