Get caught on a bit of wood and prevent flow (4)
I believe the answer is:
clog
'prevent flow' is the definition.
I can't judge whether this defines the answer.
'get caught on a bit of wood' is the wordplay.
'get' says to put letters next to each other.
'caught on' becomes 'c' (cricket abbreviation. I am not sure about the 'on' bit.).
'a bit of wood' becomes 'log' (log of wood).
'c' put next to 'log' is 'CLOG'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for clog that I've seen before include "Block; sabot" , "Obstruct the wooden shoe" , "Bung up" , "Shoe with a thick wooden sole" , "Block with wooden-soled shoe?" .)