Group to assess for a speaker a passage between seats (7)
I believe the answer is:
gangway
'a passage between seats' is the definition.
I can't judge whether this definition defines the answer.
'group to assess for a speaker' is the wordplay.
'group' becomes 'gang' (a gang is a group of people).
'to assess' becomes 'weigh' (I've seen this before).
'for a speaker' shows a homophone (sound like) (the words would sound the same when spoken).
'weigh' sounds like 'way'.
'gang'+'way'='GANGWAY'
Can you help me to learn more?
(Other definitions for gangway that I've seen before include "Aisle; ship access" , "part of ship" , "Movable bridge from ship to land" , "means to secure passage on ship" , "Way to board ship" .)