  Pulse arrival time measurements over fourteen years with the Nanshan 25-m and
Parkes 64-m radio telescopes have been used to determine the average profile
and timing properties for PSR J1757$-$2421 (B1754$-$24). Analysis of the radio
profile data shows a large variation of spectral index across the profile and
an unusual increase in component separation with increasing frequency. The
timing observations show that PSR B1754$-$24 underwent a large glitch with a
fractional increase in spin frequency of $\Delta\nu_{\rm g}/\nu\sim
7.8\times10^{-6}$ in May 2011. At the time of the glitch there was a large
permanent jump in the rotational frequency accompanied by two exponential
recovery terms with timescales of 15(6) and 97(15) days, respectively.
