Model missed by out of form striker (6)
I believe the answer is:
sitter
'model' is the definition.
(I know that model is a type of model)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for sitter that I've seen before include "Easy shot or catch" , "Extremely easy task" , "broody type" , "Dolly" , "One minds the baby" .)