On the spot, unable to get away! (6)
I believe the answer is:
rooted
'on' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for rooted that I've seen before include "(Of new cutting) firmly established" , "Fixed in place like plants in soil" , "Firmly established in a plantlike way" , "Stuck in one place, like plant" , "Stuck to the spot" .)