Put in last place (5)

I believe the answer is:

inter

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'put' is the definition.
(I know that inter is a type of lay)

'in last place' is the wordplay.
'last' becomes 't' (I've seen this in other clues).
'place' becomes 'er' (I can't justify this - if you can you should give a lot more credence to this answer).
'in'+'t'+'er'='INTER'

Can you help me to learn more?

(Other definitions for inter that I've seen before include "foreign team" , "Send to ground" , "team from Italy" , "Nitre (anag.)" , "Place in ground" .)

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

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