It depends what app you are in, but it works in Safari and Preview and unfortuntely not in M$ word 🙁.
1. Highlight the text you want.
2. Go to Safari / Preview menu and select 'Services'.
3. Select 'TextEdit' then 'New Window Containing Selection'
4. Voila!! TextEdit will open a new window with the selected text
inside
5. Press command p to print.
edit - not sure what other apps it works in - just experiment and see.
aussie_geek