Going back to bed at some stage, remove the trousers (5)
I believe the answer is:
debag
'going back to bed at some stage remove the trousers' is the definition.
I can't judge whether this definition defines the answer.
'going back to bed at some stage remove' is the wordplay.
'back' indicates one should take the final letters (the letter at the back).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'at' says to put letters next to each other (I've seen this in other clues).
'some' means to look at the middle letters.
'remove' indicates an anagram (move the letters again).
The central letter of 'stage' is 'a'.
The final letter of 'going' is 'g'.
'bed' put after 'a' is 'abed'.
'abed' with letters rearranged gives 'deba'.
'g' put after 'deba' is 'DEBAG'.
Can you help me to learn more?
(Other definitions for debag that I've seen before include "take trousers off" , "Remove (a person's) trousers" , "Strip of cords maybe" , "As a prank remove pants" , "Deprive of trousers" .)