Stand with three legs, stumble, and ring head doctor (6)
I believe the answer is:
tripod
'stand with three legs' is the definition.
'tripod' can be an answer for 'stand' (I've seen this in another clue). I am not sure about the 'with three legs' bit.
'stumble and ring head doctor' is the wordplay.
'stumble' becomes 'trip' (synonyms).
'and' means one lot of letters go next to another.
'ring' becomes 'O' (letter resembling a ring).
'head' indicates taking the first letters.
The initial letter of 'doctor' is 'd'.
'trip'+'o'+'d'='TRIPOD'
Can you help me to learn more?
(Other definitions for tripod that I've seen before include "Drop it (anag)" , "Support needed" , "Pay heed" , "one appears to have three legs!" , "Three-legged stand as for camera" .)