  We present a study of the nearby low-metallicity dwarf galaxy IC 1613,
focusing on the search for massive stars and related feedback processes, as
well as for faint supernova remnants (SNR) in late stages of evolution. We
obtained the deepest images of IC 1613 in the narrow-band H{\alpha}, He II and
[S II] emission lines and new long-slit spectroscopy observations using several
facilities (6-m BTA, 2.5m SAI MSU, and 150RTT telescopes), in combination with
the multi-wavelength archival data from MUSE/VLT, VLA, XMM-Newton, and
Swift/XRT. Our deep narrow-band photometry identifies several faint shells in
the galaxy, and we further investigate their physical characteristics with the
new long-slit spectroscopy observations and the archival multi-wavelength data.
Based on energy balance calculations and assumptions about their possible
nature, we propose that one of the shells is a possible remnant of a supernova
explosion. We study five out of eight Wolf-Rayet (WR) star candidates
previously published for this galaxy using the He ii emission line mapping,
MUSE/VLT archival spectra, and new long-slit spectra. Our analysis discards the
considered WR candidates and finds no new ones. We found P Cyg profiles in
H{\alpha} line in two stars, which we classify as Luminous Blue Variable (LBV)
star candidates. Overall, the galaxy IC 1613 may have a lower rate of WR star
formation than previously suggested.
