Cross-power spectra between WiggleZ galaxies and MeerKAT H I intensity maps at redshift z ≈ 0.4 for the PCA and PCAw cleaned cubes in the top and bottom panel, respectively. Maps are cleaned by removing different numbers of PCA (and PCAw) modes, from dark, N_fg = 4, to light colour lines, N_fg = 9; 1σ error bars are shown with the corresponding shaded areas. The red dashed line is the fitted model from CL23 (same data, different cleaning strategy) that instead includes a 𝒯-correction for the signal loss; as a rule-of-thumb, the uncorrected CL23 best-fit would show an 80% lower amplitude at the largest scale probed (e.g. below the 1σ boundary of the N_fg = 4 and 5 PCAw measurements for k ≲ 0.12 h/Mpc in the bottom panel). We plot the product kP(k) to accentuate the small scales that would otherwise be flattened by the much higher low-k measurements.