1. [adj]  of persons; excessively affected by emotion; "he would become emotional over nothing at all"; "she was worked up about all the noise"
2. [adj]  emotionally aroused
3. [adj]  keenly excited (especially sexually) or indicating excitement; "his face all ablaze with excitement"- Bram Stoker; "he was aflame with desire"
4. [adj]  aroused to action; "the aroused opposition"
5. [adj]  feeling great sexual desire; "feeling horny"
6. [adj]  brought to a state of great tension; "all wound up for a fight"

AROUSED is a 7 letter word that starts with A.