Eg, Liverpool game grips Everton and Anfield primarily (7)
I believe the answer is:
seaport
'eg liverpool' is the definition.
(I know that Liverpool is or was a seaport)
'game grips everton and anfield primarily' is the wordplay.
'game' becomes 'sport' (I've seen this before).
'grips' is an insertion indicator.
'everton' becomes 'e' (this might be a standard abbreviation of which I'm unaware).
'and' says to put letters next to each other.
'primarily' suggests taking the first letters.
The first letter of 'anfield' is 'a'.
'e'+'a'='ea'
'sport' enclosing 'ea' is 'SEAPORT'.
Can you help me to learn more?
(Other definitions for seaport that I've seen before include "Town with a large harbour" , "Dover, say" , "Embarkation and disembarkation point for ocean-going ships" , "Esparto (anag)" , "Place with harbour for ocean-going ships" .)