The drivel there may be at the Boar's Head, Leatherhead (7)
I believe the answer is:
blether
'the drivel' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'there may be at the boar's head leatherhead' is the wordplay.
'may be' indicates anagramming the letters.
'at' says to put letters next to each other (I've seen this in other clues).
'head' indicates taking the first letters.
'leatherhead' becomes 'l' (head letter of 'leather').
The first letter of 'boars' is 'b'.
'there' with letters rearranged gives 'ether'.
'b'+'l'='bl'
'ether' after 'bl' is 'BLETHER'.
Can you help me to learn more?
(Other definitions for blether that I've seen before include "Idle talk" , "Yak" , "gas" , "gossip" .)