Burrow fast incorporating space for colony (10)
I believe the answer is:
settlement
'colony' is the definition.
(I know that colony can be written as settlement)
'burrow fast incorporating space' is the wordplay.
'burrow' becomes 'sett' (I've seen this before).
'fast' becomes 'lent' (Lent is a period of fasting in Christianity).
'incorporating' means one lot of letters goes inside another.
'space' becomes 'em' (in typography, a space as wide as a letter 'm').
'lent' enclosing 'em' is 'lement'.
'sett'+'lement'='SETTLEMENT'
'for' acts as a link.
(Other definitions for settlement that I've seen before include "Reservation" , "Official agreement" , "deal" , "local community" , "village" .)