List of hidden word indicators

This is an incomplete list of specific hidden word indicators. Note that almost any container and contents indicator may be used to specify a hidden word, and as such, these have been omitted here; additionally, some word arrangements may permit other verb forms to be used as hidden word indicators (e.g. Paul's "Sheep farmer in ovine shackles (6)" for MERINO).
 * a bit of
 * attributes
 * bottled by
 * buried in
 * central to
 * characters in
 * components
 * concealed by
 * constituents
 * contained in
 * elements of
 * essential to
 * essentially
 * extract
 * fragment
 * from
 * gems
 * held by
 * held in
 * hidden in
 * in
 * in part
 * part
 * part of
 * piece
 * piece of
 * prisoners
 * sample
 * secretly
 * segment
 * shackled by
 * slice
 * some
 * stuffing
 * within