Collection of religious songs gutted holy men most of all (6)
I believe the answer is:
hymnal
'collection of religious songs' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'gutted holy men most of all' is the wordplay.
'gutted' suggests removing the centre (to gut something is to remove its insides).
'men' becomes 'mn' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'most of' means to remove the last letter.
'holy' with its middle removed is 'hy'.
'all' with its last letter taken away is 'al'.
'hy'+'mn'+'al'='HYMNAL'
Can you help me to learn more?
(Other definitions for hymnal that I've seen before include "Book containing songs of praise" , "Religious songbook" , "chorister's guide" , "Not quenched" , "Book found in church" .)