Turrets all over the place around Spain with speakers (8)
I believe the answer is:
utterers
'speakers' is the definition.
'turrets all over the place around spain' is the wordplay.
'all over the place' indicates anagramming the letters.
'around' indicates putting letters inside.
'spain' becomes 'e' (abbreviation for Espana).
'turrets' is an anagram of 'uttrers'.
'uttrers' enclosing 'e' is 'UTTERERS'.
'with' is the link.
(Other definitions for utterers that I've seen before include "They recite" , "They circulate" , "they say" .)