i like yourself am intrested in fishing the fly on the river clyde as im a regular to glasgows second river the river kelvin which can also be a great river and for £15 its a real bargain i think you will find the spiders work well and in dark colours their are many sites out their on clyde style flies i would look that search up if i were you as you will find most are spiders ,anyway i hope you have a good season on the clyde and tight lines

everyone ,by the way their can also be good dry fly fishing on the clyde too so ive heard