THEME: phrases contain prefixes of SPHERE
GOOD ONES: Word that can follow {theme} SPHERE
Elementary fellow? SHERLOCK [I'd exchange
fellow for "chap."]
Land at Orly? TERRE
BTW: Lunchbox item
SOUPTHERMOS [what's a soup thermos --- anything like a coffee, tea, or water thermos?]
Empty threat PAPER TIGER [it's the person not the threat, so the clue should indicate person: "All bark-no bite
guy" or maybe just "Obama" --- sorry for politics]
Floride & ETAT are not words in English, and
NLER is not a word in any language.
CPA's office, perhaps STE [likely an abbr. of SUITE, but if so, most CPA's don't have suites; I'd go with "Magnate's office"]
I liked this puzzle for its scientific bent:
exo-, thermo-, meso-, troposhpere as well as
BOSONS.
RATING:

Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun