They make bread and cakes (6)
I believe the answer is:
bakers
'they make bread and cakes' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for bakers that I've seen before include "This dozen is thirteen" , "They make bread and cakes" , "This dozen is 13 (5'1)" , "9 makers" , "Bread-makers" .)