### Clue: Unruly youth, first out of bed, with hairstyle changed to latest version (7)
### Answer: UPDATED 
 ### Explanation: Definition: changed to latest version
 TED(short for "teddy boy";unruly youth of the 50s and 60s in Britain) **placed below**(first …, in a down clue) [ UP(and about;out of bed) **plus**(with) D.A.(abbrev. for "duck's arse, or ass", a hairstyle with the hair swept to the back of the head, so as to resemble a duck's tail, adopted by the teddy boys as identification) ].