Managed to inject most drunk horizontal member (7)
I believe the answer is:
transom
'horizontal member' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'managed to inject most drunk' is the wordplay.
'managed' becomes 'ran' (I've seen this in another clue).
'to inject' is an insertion indicator (inserted letters are injected).
'drunk' indicates anagramming the letters.
'most' anagrammed gives 'tsom'.
'ran' going inside 'tsom' is 'TRANSOM'.
Can you help me to learn more?
(Other definitions for transom that I've seen before include "Crossbar over door" , "something seen in the window" , "Lintel" , "Horizontal bar across window" , "Cross-beam" .)