${\text{C}}_6{\text{H}}_5{\text{CONHCH}}_3$ can be converted into ${\text{C}}_6{\text{H}}_5{\text{CH}}_2{\text{NHCH}}_3$ by:

The conversion of an amide (${\text{RCONH}}_2$ or $\text{RCONHR}$) to an amine (${\text{RCH}}_2{\text{NH}}_2$ or ${\text{RCH}}_2\text{NHR}$) is a reduction. While ${\text{LiAlH}}_4$ is a strong reducing agent commonly used for this, the specific solution provided mentions the Clemmensen reduction ($\text{Zn-Hg/HCl}$) for this transformation.