Blame papers: Express, particularly? (5)

I believe the answer is:

rapid

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'express particularly?' is the definition.
'rapid' can be an answer for 'express' (I've seen this before). I am unsure of the 'particularly?' bit.

'blame papers' is the wordplay.
'blame' becomes 'rap' (synonyms).
'papers' becomes 'ID' (short for identification papers).
'rap'+'id'='RAPID'

Can you help me to learn more?

(Other definitions for rapid that I've seen before include "Zippy" , "haste" , "Fast, quick" , "Fleet, swift" , "Speedy (5)" .)

I've seen this clue in The Times.

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