### Clue: Silly southern jazz fan finishing off session drops into crash site (7-7)
### Answer: SCATTER-BRAINED 
 ### Explanation: Definition: Silly
 S(abbrev. for "southern") + CAT(slang for a jazz fan) + "term"(a session/a period of time devoted to a particular activity) ***minus its last letter***(finishing off …) + [RAIN(a shower of drops of liquid, eg. rainwater) ***contained** **in***(into) BED(whimsically a crash site/a place where you crash/sleep)].