Motivational channel showing poor run hosted by club (8)
I believe the answer is:
millrace
'motivational channel' is the definition.
'millrace' can be an answer for 'channel' (millrace is a kind of channel). I am unsure of the 'motivational' bit.
'poor run hosted by club' is the wordplay.
'poor' becomes 'ill' (I've seen this in another clue).
'run' becomes 'r' (cricket abbreviation).
'hosted by' is an insertion indicator.
'club' becomes 'mace' (mace can mean a club or stick).
'ill'+'r'='illr'
'illr' going inside 'mace' is 'MILLRACE'.
'showing' acts as a link.
Can you help me to learn more?
(Other definitions for millrace that I've seen before include "current providing power" , "Channel for water driving wheel" , "Channel for the water current that turns a wheel" , "Flow of water" , "Channel leading to water wheel" .)