Attacks popular Greek holiday destination in speech (7)

I believe the answer is:

inroads

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'attacks popular greek holiday destination' is the definition.
'inroads' can be an answer for 'attacks' (I've seen this before). I am unsure of the 'popular greek holiday destination' bit.

'in speech' is the wordplay.
'speech' becomes 'roads' (I can't explain this - if you can you should believe this answer much more).
'in'+'roads'='INROADS'

Can you help me to learn more?

(Other definitions for inroads that I've seen before include "(Make) raids, intrusions (into)" , "raid" , "Ordains as offensives" , "Sad iron (anag.)" , "Major acts of encroachment" .)

I've seen this clue in The Telegraph.

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