\version "2.18.2"

ObMusic = \relative c'' { c2 c | c c | c c | c c }
\addQuote "Ob" \ObMusic

\relative c { \clef "tenor" d1  | R1 | \cueDuringWithClef #"Ob" #UP "treble" { R1 \once\omit Staff.CueEndClef } | \clef "bass" c1 }