Demote engineers with member having dined (8)
I believe the answer is:
relegate
'demote' is the definition.
(I know that demote can be written as relegate)
'engineers with member having dined' is the wordplay.
'engineers with' becomes 're' (abbreviation for Royal Engineers. I am not sure about the 'with' bit.).
'member' becomes 'leg' (member can mean a limb).
'having' means one lot of letters go next to another.
'dined' becomes 'ate' (I've seen this in another clue).
're'+'leg'+'ate'='RELEGATE'
Can you help me to learn more?
(Other definitions for relegate that I've seen before include "Assign to a lower position" , "Move down to a lower grade" , "Demote" , "Put in a lower division" , "Transfer to a lower division" .)