Kelly, in films, gets a lot of credit dealing with make-up (7)
I believe the answer is:
genetic
'credit dealing with make-up' is the definition.
I can't tell whether this definition defines the answer.
'kelly in films gets a lot' is the wordplay.
'kelly' becomes 'gene' (I've seen this in another clue).
'in films' becomes 'ti' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'gets' says to put letters next to each other.
'a lot' becomes 'c'.
'gene'+'ti'+'c'='GENETIC'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for genetic that I've seen before include "(The code) of our DNA" , "Passed down from a previous generation" , "Pertaining to heredity" , "origin of something" , "- - code (biol.)" .)