Elbow uncovered with force (5)
I believe the answer is:
nudge
'elbow' is the definition.
(synonyms)
'uncovered with force' is the wordplay.
'uncovered' becomes 'nude' ().
'with' 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 "---. ---, wink, wink (Monty Python)" , "Push with the elbow" , "Gentle poke with elbow" , "Dig with elbow" , "Gentle encouragement" .)