Employing a little Chilean to service outbuildings (4-3)
I believe the answer is:
lean-tos
'outbuildings' is the definition.
(I've seen this before)
'employing a little chilean to service' is the wordplay.
'employing' is an insertion indicator.
'a' becomes 'an'.
'little chilean' becomes 'os' (I can't justify this - if you can you should believe this answer much more).
'to' says to put letters next to each other (I've seen this in other clues).
'service' becomes 'let' (type of tennis serve).
'os' put after 'let' is 'letos'.
'an' inserted within 'letos' is 'LEAN-TOS'.
Can you help me to learn more?
(Other definitions for lean-tos that I've seen before include "outbuildings" , "extensions" .)