Of Course! (solution)

by Patrick Blindauer

The answers to the clues are: 

A GIRL LIKE YOU
COMFIER
CONNECTING TRAIN
HOMICIDE
INFANCY GOSPELS
IREX
MAR DEL PLATA
OBSOLETELY
RAW SIENNA
SATORI
THE PASSWORD IS
TUDOR

These are A-Z, but they also have unique lengths (4-15). Rearranging by length gives: 

IREX
TUDOR
SATORI
COMFIER
HOMICIDE
RAWSIENNA
OBSOLETELY
MARDELPLATA
AGIRLLIKEYOU
THEPASSWORDIS
INFANCYGOSPELS
CONNECTINGTRAIN

The first letters spell IT’S CHROMATIC, hinting to find the 12-tone chromatic solfege (link). Re-rearranging by solfege syllable gives: 

TUDOR
THEPASSWORDIS
IREX
SATORI
HOMICIDE
INFANCYGOSPELS
COMFIER
OBSOLETELY
RAWSIENNA
MARDELPLATA
AGIRLLIKEYOU
CONNECTINGTRAIN

(TUDOR should really be at the bottom since this is an ascending scale, but you get the idea.) The diagonal gives the clue THE O.C. CREATOR who is JOSH SCHWARTZ, the answer to this puzzle.