Outfit’s three points on detailed logo (8)
I believe the answer is:
ensemble
'outfit's' is the definition.
(ensemble is a kind of outfit)
'three points on detailed logo' is the wordplay.
'three points' becomes 'ens'.
'on' means one lot of letters go next to another.
'detailed' means to remove the last letter (the word must be end-less or 'de-tailed').
'logo' becomes 'emblem' (I've seen this before).
'emblem' with its last letter taken off is 'emble'.
'ens'+'emble'='ENSEMBLE'
(Other definitions for ensemble that I've seen before include "Group of entertainers" , "Group of musicians or co-ordinated clothes" , "Complete outfit - group of musicians" , "Group of musicians provide a full outfit" , "Coordinated set of clothes" .)