Our gestures reveal a yearning (4)
I believe the answer is:
urge
'a yearning' is the definition.
(I've seen this in another clue)
'our gestures reveal' is the wordplay.
'reveal' indicates a hidden word.
'URGE' is hidden within 'our gestures'.
(Other definitions for urge that I've seen before include "Advise strongly or prod" , "Propel, drive onward" , "Encourage or entreat earnestly" , "Appeal to" , "Capital of Colombia" .)