I remain with Mike in the same place (6)
I believe the answer is:
ibidem
'in the same place' is the definition.
('ibidem' can be a synonym of 'in the same place')
'i remain with mike' is the wordplay.
'remain' becomes 'bide' (biding is a kind of remaining).
'with' means one lot of letters go next to another.
'mike' becomes 'm' (phonetic alphabet: alpha, bravo, charlie etc.).
'i'+'bide'+'m'='IBIDEM'
(Other definitions for ibidem that I've seen before include "In the same place as previous reference" , "In the same source (Latin)" , "Notation meaning in same book or passage, often shortened" , "Latin word indicating in same book or passage" , "Abbreviation meaning in same book or passage" .)