Playful in a French resort, nearly uncontrolled (8)
I believe the answer is:
anarchic
'uncontrolled' is the definition.
('anarchic' can be similar in meaning to 'uncontrolled')
'playful in a french resort nearly' is the wordplay.
'playful' becomes 'arch' (I've seen this before).
'in' indicates putting letters inside.
'french resort' becomes 'nice' (I've seen this before).
'nearly' means to remove the last letter.
'a'+'nice'='anice'
'anice' with its final letter taken away is 'anic'.
'arch' placed within 'anic' is 'ANARCHIC'.
(Other definitions for anarchic that I've seen before include "ignoring the law" , "rioting" , "lacking proper rule" , "Uncontrolled or lawless" , "Car chain (anag.)" .)