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