  A correct determination of the spin-isospin properties of the nuclear
effective interaction should lead, among other improvements, to an accurate
description of the Gamow-Teller Resonance (GTR). These nuclear excitations
impact on a variety of physical processes: from the response in charge-exchange
reactions of nuclei naturally present in the Earth, to the description of the
stellar nucleosynthesis, and of the pre-supernova explosion core-collapse
evolution of massive stars in the Universe. A reliable description of the GTR
provides also stringent tests for neutrinoless double-$\beta$ decay
calculations. We present a new Skyrme interaction as accurate as previous
forces in the description of finite nuclei and of uniform matter properties
around saturation density, and that account well for the GTR in ${}^{48}$Ca,
${}^{90}$Zr and ${}^{208}$Pb, the Isobaric Analog Resonance and the Spin Dipole
Resonance in ${}^{90}$Zr and ${}^{208}$Pb.
