Crossword Puzzle Inflexible terms

Clue: Inflexible terms

___ uncertain terms (INNO with 4 letters)
"I accept your terms!" (DEAL with 4 letters)
Becomes inflexible (STEELS with 6 letters)
Like you after drinking Red Bull, according to commercials, in scientific terms (ALATE with 5 letters)
First, in terms of transmission (LOWGEAR with 7 letters)
Agree to someone's terms (ACCEPTAPROPOSAL with 15 letters)
Agree to terms (CUTADEAL with 8 letters)
Rental terms (LEASE with 5 letters)
On even terms, old-style (EGAL with 4 letters)
Terms in office (TENURES with 7 letters)