The most common and most likely answer to this crossword clue is the 5 letter word NUDGE
I've seen this crossword clue in The Times
N
U
D
G
E
More clues leading to the result NUDGE
- Cue imparting spin on for example brown
- Germany's leader entering naked jog
- Going in starkers is grand way to get attention
- Dig not being clobbered around head in Glasgow
- Getting naked around end of evening is a suggestive move
- Prod naked figure holding Gorgon’s head
- Going in starkers is good way to attract attention
- Dig garden’s first exposed borders
- Elbow’s good in, eg, Goya’s Naked Maja
- New Critic losing head gets push
Buddy explains!

The straight part
We know that "Elbow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case elbow = nudge.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does NUDGE mean?
NUDGE noun- A gentle push.
- A feature of instant messaging software used to get the attention of another user, as by shaking the conversation window or playing a sound.
- The rotation by one step of a fruit machine reel of the player's choice.
- The use of positive reinforcement and indirect suggestions as ways to influence.
- To push against gently, especially in order to gain attention or give a signal.
- To near or come close to something.