if you say that it is only a matter of time before something happens, you mean that you are sure it is going to happen, although you do not know when.

It is only a matter of time before he is forced to resign. (usually + before)

I know she will be a great novelist. It is only a matter of time.

• cut-and-dried
• cut and run
• cut and thrust of
• cut and thrust of something
• cut an ... figure
• cut an figure
• cut an interesting figure
• cut an [interesting/ridiculous/unusual etc.] figure
• cut an ridiculous figure
• cut an unusual figure
• cut a rug
• cut a swath
• cut a swathe through
• cut a swathe through something
• cut a swath through
• cut a swath through something
• cut a wide swath
• cut both ways
• cut coat according to cloth
• cut coat according to your cloth
• cut corners
• cut dead
• cut down to size
• cut from the same cloth
• cut in