Misguided betrothal to wet bedfellow?
I believe the answer is:
hot-water bottle
'bedfellow?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'misguided betrothal to wet' is the wordplay.
'misguided' indicates anagramming the letters (I've seen this in other clues).
'betrothal'+'to'+'wet'='betrothaltowet'
'betrothaltowet' is an anagram of 'HOT-WATER BOTTLE'.
Can you help me to learn more?
(Other definitions for hot-water bottle that I've seen before include "night heater" , "comfort in retirement!" , "Bed warmer" .)