Graceful and neat, oddly concealing limb (7)
I believe the answer is:
elegant
'graceful' is the definition.
(I know that graceful can be written as elegant)
'neat oddly concealing limb' is the wordplay.
'oddly' indicates an anagram.
'concealing' means one lot of letters goes inside another.
'limb' becomes 'leg' (leg is a kind of limb).
'neat' is an anagram of 'eant'.
'eant' enclosing 'leg' is 'ELEGANT'.
'and' acts as a link.
(Other definitions for elegant that I've seen before include "Polished" , "Refined gracefulness" , "Tasteful and refined in appearance" , "Attractive and graceful or stylish" , "Well-dressed" .)