I'm struggling to solve the last two clues - 1 across 'Supply what is lacking' 5,3,3 - I have C-N-E / -H- / G-P I'm guessing the last two words are 'the gap' but Solution Wizard can't help, so I'm stuck.
Also - 16 across - 'Surround, envelop' - I have E-N-L-
Grateful for any assistance!