Hi folks.
Thank you for all your replies. Opportunity closed regrettably.
IR lapsed >7 years. Did the 5 IR exams - current CPL holder. Renewed SP ME IR. UK CAA say that your ATPL TK does NOT lapse. It is the IR that lapses. You have previously proved ATPL TK. If you want to be a Captain, then yes, you have to do the ATPLs again (bar VFR Comms).
However, HR may view things differently. Been advised to keep shtum. I will.