The only problem with pocket knives with clips is the clip. It's not really an issue but everyone can see it, whether it's a standard or deep cover design.
My wife needed to go to the mall, it was lunch time, so I went and we decided to have lunch at one of the restaurants. Fast forward and we were walking to the store, sheriff's deputies always hang out by the info center.
Yep, you guessed right, we were laughing about something and I feel a tap on my shoulder. Standing there is a deputy letting me know that weapons are not allowed in the mall! I was like this
, he said the knife.
As I'm walking back into the mall after putting said knife in car... the sign is about the size of a football! And it's only on the main entrances to the mall, not on any side entrances.
If it can't be seen at work, I would look for something that can go completely into your pocket. If you carry a briefcase or satchel, that would afford you another level of carry options.