Audio Editing, Sound Editing

We have some voice-overs like the one below. Please listen to the first ten seconds of this audio. If you listen carefully (especially with a headphone), you will hear a clicking noise that happens every now and then. It's very subtle and hard to hear, but it occurs frequency in the voice.
https://drive.google.com/open?id=1B1QJSr_mgZNTR6S7VRFN6BoXegjk5dvL

I need someone who can minimize or remove this annoying noise.