I think that Stan & BM have already answered this for you, but I will attempt to answer it also.
YES.
In the road that the Clock is in there are a number of bars and restaurants (most left when exiting the clock but some to the right as well).
The so called 'Soi Falang' and the Robinson Centre are within walking distance (Out of the Clock, right to the top of the street, right there, then right at the lights, or just before the lights - will get you there).
The 'night market' or 'Centre Point' (as it is also known) is also within walking distance (But left at the top of the street rather than right for Robinsons).
Dwang Dang (not sure about the spelling, sorry) is a 'mainly' Thai night spot with live bands. And is at the very end of the road past Robinsons..
A look at the actual map of Udon (the Clock is clearly marked in square P11) will show almost anything you want to know....