to set aside; to leave something alone for the time being (not pursue or deal with it now).
面倒なことはひとまずさておく。
I'll set the troublesome things aside for now.
証拠が不十分なのでその件はさておいて、ほかの手がかりを探そう。
Since the evidence is insufficient, let's set that matter aside and look for other leads.
その点はさておいても、全体としては良い作品だ。
Putting that point aside, it's a good work overall.