Crossword Genius

Spike’s second stop on pub crawl? (4)

Ross

I believe the answer is:

barb

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'spike's' is the definition.
(I've seen this before)

'second stop on pub crawl?' is the wordplay.
'second' becomes 'b' (B can mean second eg B-side).
'stop on pub crawl?' becomes 'arb' (I can't explain this - if you can you should give a lot more credence to this answer).
'b'+'arb'='BARB'

Can you help me to learn more?

(Other definitions for barb that I've seen before include "Pointed part - gibe" , "A thorn or a gibe" , "Jibe" , "Hook - gibe" , "Hurtful comment" .)

I've seen this clue in The Times.
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