Isolated dispatch received by French company in recession (8)

'isolated' is the definition.

'dispatch received by french company in recession' is the wordplay.
'dispatch' becomes 'remit' (I've seen this before).
'received by' indicates putting letters inside.
'french company' becomes 'cie' (abbreviation of the french 'compagnie').
'in recession' shows that the letters should be reversed in order.
'cie' reversed gives 'eic'.
'remit' put within 'eic' is 'EREMITIC'.