  We present dielectric spectroscopy data obtained for gallium-doped
Cd$_{0.99}$Mn$_{0.01}$Te:Ga mixed crystals which exhibit a very special case of
the two-power-law relaxation pattern with the high-frequency power-law exponent
equal to 1. We explain this behavior, which cannot be fitted by none of the
well-known empirical relaxation functions, in a subordinated diffusive
framework. We propose diffusion scenario based on a renormalized clustering of
random number of spatio-temporal steps in the continuous time random walk. Such
a construction substitutes the renewal counting process, used in the classical
continuous time random walk methodology, by a compound counting one. As a
result, we obtain a novel relaxation function governing the observed
non-standard pattern, and we show the importance of the compound counting
processes in studying fractional dynamics of complex systems.
