Like some newly rescued dogs (8)

I believe the answer is:

skittish

(Other definitions for skittish that I've seen before include "Frisky or playful (8)." , "Playful, hard to control" , "Frivolous" , "(Of horses) excessively lively" , "Playful in coy manner, frisky" .)

I've seen this clue in the LA Times.

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