Training device still wobbling, on being secured (7)
I believe the answer is:
trellis
'training device' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'still wobbling on being secured' is the wordplay.
'wobbling' indicates anagramming the letters.
'on' becomes 're' (regarding).
'being secured' indicates putting letters inside.
'still' is an anagram of 'tllis'.
'tllis' placed around 're' is 'TRELLIS'.
Can you help me to learn more?
(Other definitions for trellis that I've seen before include "Latticed frame" , "Framework - stiller (anag)" , "garden equipment" , "Support for climbing plants" , "climbers train on it" .)