Elbow uncovered, taking force (5)
I believe the answer is:
nudge
'elbow' is the definition.
(I know that elbow is a more specific form of the action nudge)
'uncovered taking force' is the wordplay.
'uncovered' becomes 'nude' (I've seen this in another clue).
'taking' is an insertion indicator.
'force' becomes 'g' (short for gravity).
'nude' going around 'g' is 'NUDGE'.
(Other definitions for nudge that I've seen before include "Jog" , "Gentle prod" , "Push (with a wink?)" , "Give a reminder" , "Jogger" .)