  The electronic structure of the reentrant superconductor
Eu(Fe$_{0.86}$Ir$_{0.14}$)$_{2}$As$_{2}$ (T$_c$ = 22 K) with coexisting
ferromagnetic order (T$_M$ = 18 K) is investigated using angle-resolved
photoemission spectroscopy (ARPES) and scanning tunneling spectroscopy (STS).
We study the in-plane and out-of-plane band dispersions and Fermi surface (FS)
of Eu(Fe$_{0.86}$Ir$_{0.14}$)$_{2}$As$_{2}$. The near E$_F$ Fe 3d-derived band
dispersions near the $\Gamma$ and X high-symmetry points show changes due to Ir
substitution, but the FS topology is preserved. From momentum dependent
measurements of the superconducting gap measured at T = 5 K, we estimate an
essentially isotropic s-wave gap ($\Delta\sim5.25\pm 0.25$ meV), indicative of
strong-coupling superconductivity with 2$\Delta$/k$_{B}$T$_{c}\simeq$ 5.8. The
gap gets closed at temperatures T $\geq$ 10 K, and this is attributed to the
resistive phase which sets in at T$_M$ = 18 K due to the Eu$^{2+}$-derived
magnetic order. The modifications of the FS with Ir substitution clearly
indicates an effective hole doping with respect to the parent compound.
