Coordination

a cryptic puzzle by Emily Cox and Henry Rathvon

Solution grid
The two extraneous letters in each clue appear after the answer.

Across

  • •
    TOPSIDE: TOPS-I-DE (rev.), fn
  • •
    YEARNS: YE(A)RNS (anag. + a), hz
  • •
    GARRETS: G(ARR)ETS, mt
  • •
    GHOSTLY: G-HO-ST(L)Y, gs
  • •
    CLOUDED: CLO(UDE)D (due anag.), nc
  • •
    AURORA: AURORA
  • •
    GALLERY: GALLERY
  • •
    POLTERGEIST: POLTERGEIST
  • •
    SPOON: SPOON
  • •
    OLFACTION: OLFACTION
  • •
    COURTSHIP: COURTSHIP
  • •
    TEEMS: TEEMS
  • •
    HATCH: HATCH
  • •
    PARIAH: PARIAH
  • •
    WHILOM: WHILOM
  • •
    BILLIONAIRE: BILLIONAIRE
  • •
    WREATHE: WREATHE
  • •
    LAMINAE: LAMINAE
  • •
    MEANDER: MEANDER
  • •
    BOUDOIR: BOUDOIR
  • •
    TESLA: TESLA
  • •
    POMEGRANATE: POMEGRANATE
  • •
    OCCULT: OCCULT
  • •
    NOOSE: NOOSE
  • •
    MANGE: MANGE
  • •
    ICELANDER: ICELANDER
  • •
    OBSCURE: OBSCURE
  • •
    HECATE: HECATE
  • •
    TRACERY: TRACERY
  • •
    COROLLARIES: COROLLARIES
  • •
    TAMPA: TAMPA
  • •
    REELED: REELED
  • •
    HYGIENE: HYGIENE
  • •
    ORCHESTRA: ORCHESTRA
  • •
    LINTY: LINTY
  • •
    SPLOTCH: SPLOTCH
  • •
    FREIGHT: FREIGHT
  • •
    HEYDAY: HEYDAY