By looking at your layout I suspect that when you created layout for your form you felt like you needed to fill out all the space you had. In reality, white space adds clarity and sense of order. I believe that the biggest issue in your layout is spacing. With spacing you can visually group certain areas of layout. Also, two column layout in forms generally isn't a good idea. The eye flow on the form is from top to bottom.
In my layout below I have done the following. I have place all the fields in one column and used space to group some inputs like mobile, telephone and fax. I have also remove the UI element you had for multiple entries as it is very clunky and takes up unnecessary real estate by default. In my example a field allowing multiple entries uses a plus button which will simply add a new text input. This was each entry stays editable at all times and only uses space required.
I have also placed the save button in the visual flow of the form and replaced the "clear" button with "cancel". Moreover, I have moved the "cancel" button away to the right so it isn't in the eye flow of the form and would require extra effort to be found thus avoiding accidental click.