  Lepton colliders are considered as options to complement and to extend the
physics programme at the Large Hadron Collider. The Compact Linear Collider
(CLIC) is an $e^+e^-$ collider under development aiming at centre-of-mass
energies of up to 3 TeV. For experiments at CLIC, a hadron sampling calorimeter
with tungsten absorber is proposed. Such a calorimeter provides sufficient
depth to contain high-energy showers, while allowing a compact size for the
surrounding solenoid.
  A fine-grained calorimeter prototype with tungsten absorber plates and
scintillator tiles read out by silicon photomultipliers was built and exposed
to particle beams at CERN. Results obtained with electrons, pions and protons
of momenta up to 10 GeV are presented in terms of energy resolution and shower
shape studies. The results are compared with several GEANT4 simulation models
in order to assess the reliability of the Monte Carlo predictions relevant for
a future experiment at CLIC.
