Crawling about salon with flour (2,3,5)
I believe the answer is:
on all fours
'crawling' is the definition.
(I've seen this in another clue)
'about salon with flour' is the wordplay.
'about' indicates an anagram.
'with' says to put letters next to each other.
'salon' put after 'flour' is 'floursalon'.
'floursalon' anagrammed gives 'ON ALL FOURS'.
(Other definitions for on all fours that I've seen before include "using arms and legs" , "in a defensive position" , "Maybe crawling" .)