well, i dunno about sf 7.0, but in wavelab 4.0/5.0, there is a dedicated declicker plugin, you simply highlight a SMALL portion of the wav, typically JUST where the click is, and ONLY in that channel, and run the declicker under the master section, works like a CHARM
bet the same plugin is available for sf7.0
you can obtain a free demo online for 30 days