Reach for some meat, maybe a tin (6)

I believe the answer is:

attain

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'reach' is the definition.
(I know that reach is a more specific form of attain)

'some meat maybe a tin' is the wordplay.
'some meat' becomes 'at' (I can't explain this - if you can you should believe this answer much more).
'maybe' is an anagram indicator.
'a'+'tin'='atin'
'atin' anagrammed gives 'tain'.
'at'+'tain'='ATTAIN'

'for' is the link.

Can you help me to learn more?

(Other definitions for attain that I've seen before include "Reach (a particular age)" , "Gain with effort" , "Succeed in reaching, achieve" , "Reach objective, get there" , "Arrive at, accomplish" .)

I've seen this clue in the Evening Standard.

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