Quicker to make a fatheaded bloomer (6)
I believe the answer is:
faster
'quicker' is the definition.
(I know that quicker can be written as faster)
'a fatheaded bloomer' is the wordplay.
'a fatheaded' becomes 'f' (this might be a standard abbreviation which I don't know about).
'bloomer' becomes 'aster' (aster is a kind of flowering plant).
'f'+'aster'='FASTER'
'to make' is the link.
Can you help me to learn more?
(Other definitions for faster that I've seen before include "Moving more quickly" , "at an increased rate?" , "Strafe (anag)" , "More rapid" , "more rapidly" .)