  The Compact Linear Collider (CLIC) is a mature option for a future
electron-positron collider operating at centre-of-mass energies of up to 3 TeV.
CLIC will be built and operated in a staged approach with three centre-of-mass
energies currently assumed to be 380 GeV, 1.5 TeV and 3 TeV. This contribution
discusses the prospects for precision measurements of top-quark properties at
the first stage of CLIC, based on detailed simulation studies, taking into
account luminosity spectra and beam induced backgrounds, full detector
simulation based on Geant4, final state reconstruction based on particle flow
approach with PandoraPFA, jet clustering with the VLC algorithm as implemented
in the FastJet package, and flavour tagging with LcfiPlus.
  Based on a dedicated centre-of-mass energy scan around the top-quark pair
production threshold, the top-quark mass can be determined with a precision of
about 50 MeV in a theoretically well-defined manner. This scan is also
sensitive to the top-quark width and Yukawa coupling. Other approaches to
extract the top-quark mass at the first stage of CLIC make use of ISR photons
or the direct reconstruction of the top quarks. Precise measurements of the
differential top-quark pair production cross sections at 380 GeV, for different
electron beam polarisations, allow the study of top-quark couplings to
electroweak gauge bosons sensitive to new physics mass scales beyond 10 TeV.
The large number of top-quark pairs produced also allows competitive searches
for Flavour Changing Neutral Current (FCNC) top-quark decays with charm quarks
in the final state. Exclusion limits expected for 500 fb$^{-1}$ collected at
the first stage of CLIC are presented for $t\rightarrow ch$, $t\rightarrow
c\gamma$ and $t\rightarrow c E_{miss}$ channels, reaching down to $4.7 \cdot
10^{-5}$ for BR($t\rightarrow c\gamma$).
