Bosom pals bid for a dangerous job (4,8)

I believe the answer is:

bomb disposal

I'm a little stuck... Click here to teach me more about this clue!

'a dangerous job' is the definition.
(I've seen this before)

'bosom pals bid' is the wordplay.
'bosom pals bid' anagrams to 'BOMB DISPOSAL'.
However, I am not clear how this is indicated.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for bomb disposal that I've seen before include "Hazardous job" , "dangerous job" .)

I've seen this clue in The Globe and Mail.

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