Barely seen gravity in giving reminder (5)
I believe the answer is:
nudge
'reminder' is the definition.
(I've seen this before)
'barely seen gravity in' is the wordplay.
'barely seen' becomes 'nude' (I can't justify this - if you can you should believe this answer much more).
'gravity' becomes 'g'.
'in' indicates putting letters inside.
'nude' going around 'g' is 'NUDGE'.
'giving' acts as a link.
Can you help me to learn more?
(Other definitions for nudge that I've seen before include "Shove" , "Jostle" , "Jogger" , "Light touch or push" , "Give a reminder" .)