linguistic
loquacious
lame
Label is a synonym for handle (name).
lousy
large
look over
Imaginative, Inventive, Inspired, or Innovative.
Leery is a synonym for suspicious.
lineup
"Talkative" is a synonym for "chatty," "communicative," or "voluble," as they all mean someone who likes to talk a lot. An antonym for "talkative" would be "silent," "quiet," or "reserved," which describe someone who does not talk much.
Active is a synonym for athletic. It starts with the letter a.
Substantial is a synonym for big that starts with S.