  In order to clarify the properties of the secondary clump star HD 226808 (KIC
5307747), we combined four years of data from Kepler space photometry with
high-resolution spectroscopy of the High Efficiency and Resolution Mercator
\'Echelle Spectrograph mounted on the Mercator telescope. The fundamental
atmospheric parameters, radial velocities, rotation velocities, and elemental
abundance for Fe and Li were determined by analyzing line strengths and
fitting-line profiles, based on a 1D local thermodynamic equilibrium model
atmosphere. Second, we analyzed a photometric light curve obtained by Kepler
and we extracted asteroseismic data of this target using Lets Analysis, Use and
Report of Asteroseismology, a new seismic tool developed for the study of
evolved FGK solar-like stars. We determined the evolutionary status and
effective temperature, surface gravity, metallicity, microturbulence, and
chemical abundances for Li, Ti, Fe, and Ni for HD~226808, by employing
spectroscopy, asteroseismic scaling relations, and evolutionary structure
models built in order to match observed data. Our results also show that an
accurate synergy between good spectroscopic analysis and asteroseismology can
provide a jump toward understanding evolved stars.}
