OAP wild with anger about hotel accommodation not suitable for his age group (9)
I believe the answer is:
orphanage
'accommodation not suitable for his age group' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'oap wild with anger about hotel' is the wordplay.
'wild with' indicates anagramming the letters.
'about' is an insertion indicator.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'oap' mixed up with 'anger' can make 'orpanage'.
'orpanage' enclosing 'h' is 'ORPHANAGE'.
Can you help me to learn more?
(Other definitions for orphanage that I've seen before include "special home" , "Parentless children's institution" , "home for little Annie" , "Home for parentless children" , "left children here?" .)